22121010102121 has 16 divisors (see below), whose sum is σ = 25344806807808. Its totient is φ = 18913128768000.

The previous prime is 22121010102073. The next prime is 22121010102199. The reversal of 22121010102121 is 12120101012122.

It is a cyclic number.

It is not a de Polignac number, because 22121010102121 - 2¹¹ = 22121010100073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22121010102095 and 22121010102104.

It is not an unprimeable number, because it can be changed into a prime (22121010102421) 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, 174843741 + ... + 174970213.

It is an arithmetic number, because the mean of its divisors is an integer number (1584050425488).

Almost surely, 2^{22121010102121} is an apocalyptic number.

It is an amenable number.

22121010102121 is a deficient number, since it is larger than the sum of its proper divisors (3223796705687).

22121010102121 is a wasteful number, since it uses less digits than its factorization.

22121010102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189192.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121010102121 its reverse (12120101012122), we get a palindrome (34241111114243).

The spelling of 22121010102121 in words is "twenty-two trillion, one hundred twenty-one billion, ten million, one hundred two thousand, one hundred twenty-one".