122211120021 has 32 divisors (see below), whose sum is σ = 173175408000. Its totient is φ = 76396523520.

The previous prime is 122211120019. The next prime is 122211120023. The reversal of 122211120021 is 120021112221.

It is an interprime number because it is at equal distance from previous prime (122211120019) and next prime (122211120023).

It is not a de Polignac number, because 122211120021 - 2¹ = 122211120019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211120023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28814461 + ... + 28818701.

It is an arithmetic number, because the mean of its divisors is an integer number (5411731500).

Almost surely, 2^122211120021 is an apocalyptic number.

It is an amenable number.

122211120021 is a deficient number, since it is larger than the sum of its proper divisors (50964287979).

122211120021 is a wasteful number, since it uses less digits than its factorization.

122211120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122211120021 its reverse (120021112221), we get a palindrome (242232232242).

The spelling of 122211120021 in words is "one hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand, twenty-one".