22101202121 has 16 divisors (see below), whose sum is σ = 23957959680. Its totient is φ = 20308477440.

The previous prime is 22101202117. The next prime is 22101202133. The reversal of 22101202121 is 12120210122.

It is not a de Polignac number, because 22101202121 - 2² = 22101202117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22101202096 and 22101202105.

It is not an unprimeable number, because it can be changed into a prime (22101202171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292976 + ... + 360606.

It is an arithmetic number, because the mean of its divisors is an integer number (1497372480).

Almost surely, 2^22101202121 is an apocalyptic number.

It is an amenable number.

22101202121 is a deficient number, since it is larger than the sum of its proper divisors (1856757559).

22101202121 is a wasteful number, since it uses less digits than its factorization.

22101202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68104.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22101202121 its reverse (12120210122), we get a palindrome (34221412243).

The spelling of 22101202121 in words is "twenty-two billion, one hundred one million, two hundred two thousand, one hundred twenty-one".