122222010012021 has 6 divisors (see below), whose sum is σ = 176542903350710. Its totient is φ = 81481340008008.

The previous prime is 122222010012017. The next prime is 122222010012031. The reversal of 122222010012021 is 120210010222221.

It is a happy number.

122222010012021 is a `hidden beast` number, since 1 + 222 + 220 + 100 + 120 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118419861003921 + 3802149008100 = 10882089^2 + 1949910^2 .

It is not a de Polignac number, because 122222010012021 - 2² = 122222010012017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122222010011985 and 122222010012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222010012031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6790111667326 + ... + 6790111667343.

Almost surely, 2^{122222010012021} is an apocalyptic number.

It is an amenable number.

122222010012021 is a deficient number, since it is larger than the sum of its proper divisors (54320893338689).

122222010012021 is a wasteful number, since it uses less digits than its factorization.

122222010012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13580223334675 (or 13580223334672 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122222010012021 its reverse (120210010222221), we get a palindrome (242432020234242).

The spelling of 122222010012021 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, ten million, twelve thousand, twenty-one".