121021200201 has 8 divisors (see below), whose sum is σ = 176030836704. Its totient is φ = 73346181920.

The previous prime is 121021200151. The next prime is 121021200217. The reversal of 121021200201 is 102002120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121021200201 - 2⁶ = 121021200137 is a prime.

It is a super-2 number, since 2×121021200201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021200221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833654516 + ... + 1833654581.

It is an arithmetic number, because the mean of its divisors is an integer number (22003854588).

Almost surely, 2^121021200201 is an apocalyptic number.

121021200201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121021200201 is a deficient number, since it is larger than the sum of its proper divisors (55009636503).

121021200201 is a wasteful number, since it uses less digits than its factorization.

121021200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667309111.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121021200201 its reverse (102002120121), we get a palindrome (223023320322).

The spelling of 121021200201 in words is "one hundred twenty-one billion, twenty-one million, two hundred thousand, two hundred one".