211204021301 has 12 divisors (see below), whose sum is σ = 264585258252. Its totient is φ = 167106477888.

The previous prime is 211204021279. The next prime is 211204021321. The reversal of 211204021301 is 103120402112.

It can be written as a sum of positive squares in 2 ways, for example, as 105413206276 + 105790815025 = 324674^2 + 325255^2 .

It is a de Polignac number, because none of the positive numbers 2^k-211204021301 is a prime.

It is a super-2 number, since 2×211204021301² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211204021301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211204021321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165779600 + ... + 165780873.

It is an arithmetic number, because the mean of its divisors is an integer number (22048771521).

Almost surely, 2^211204021301 is an apocalyptic number.

It is an amenable number.

211204021301 is a deficient number, since it is larger than the sum of its proper divisors (53381236951).

211204021301 is a wasteful number, since it uses less digits than its factorization.

211204021301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331560500 (or 331560493 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211204021301 its reverse (103120402112), we get a palindrome (314324423413).

The spelling of 211204021301 in words is "two hundred eleven billion, two hundred four million, twenty-one thousand, three hundred one".