122211321021 has 12 divisors (see below), whose sum is σ = 183065518272. Its totient is φ = 81474213852.

The previous prime is 122211320969. The next prime is 122211321041. The reversal of 122211321021 is 120123112221.

It is not a de Polignac number, because 122211321021 - 2⁹ = 122211320509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122211320985 and 122211321003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211321041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251463381 + ... + 251463866.

It is an arithmetic number, because the mean of its divisors is an integer number (15255459856).

Almost surely, 2^122211321021 is an apocalyptic number.

It is an amenable number.

122211321021 is a deficient number, since it is larger than the sum of its proper divisors (60854197251).

122211321021 is an frugal number, since it uses more digits than its factorization.

122211321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502927262 (or 502927250 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122211321021 its reverse (120123112221), we get a palindrome (242334433242).

The spelling of 122211321021 in words is "one hundred twenty-two billion, two hundred eleven million, three hundred twenty-one thousand, twenty-one".