122204031021 has 24 divisors (see below), whose sum is σ = 193822521984. Its totient is φ = 76677036480.

The previous prime is 122204031011. The next prime is 122204031029. The reversal of 122204031021 is 120130402221.

It is a happy number.

122204031021 is a `hidden beast` number, since 12 + 220 + 403 + 10 + 21 = 666.

It is not a de Polignac number, because 122204031021 - 2¹⁴ = 122204014637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122204030985 and 122204031003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122204031029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14786965 + ... + 14795226.

It is an arithmetic number, because the mean of its divisors is an integer number (8075938416).

Almost surely, 2^122204031021 is an apocalyptic number.

It is an amenable number.

122204031021 is a deficient number, since it is larger than the sum of its proper divisors (71618490963).

122204031021 is an equidigital number, since it uses as much as digits as its factorization.

122204031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29582223 (or 29582211 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 122204031021 its reverse (120130402221), we get a palindrome (242334433242).

The spelling of 122204031021 in words is "one hundred twenty-two billion, two hundred four million, thirty-one thousand, twenty-one".