201011221202122 has 4 divisors (see below), whose sum is σ = 301516831803186. Its totient is φ = 100505610601060.

The previous prime is 201011221202117. The next prime is 201011221202137. The reversal of 201011221202122 is 221202122110102.

201011221202122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 130554184412961 + 70457036789161 = 11426031^2 + 8393869^2 .

It is a super-2 number, since 2×201011221202122² (a number of 29 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 201011221202122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50252805300529 + ... + 50252805300532.

Almost surely, 2^{201011221202122} is an apocalyptic number.

201011221202122 is a deficient number, since it is larger than the sum of its proper divisors (100505610601064).

201011221202122 is a wasteful number, since it uses less digits than its factorization.

201011221202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100505610601063.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201011221202122 its reverse (221202122110102), we get a palindrome (422213343312224).

The spelling of 201011221202122 in words is "two hundred one trillion, eleven billion, two hundred twenty-one million, two hundred two thousand, one hundred twenty-two".