122100021122 has 4 divisors (see below), whose sum is σ = 183150031686. Its totient is φ = 61050010560.

The previous prime is 122100021107. The next prime is 122100021139. The reversal of 122100021122 is 221120001221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 102695252521 + 19404768601 = 320461^2 + 139301^2 .

It is a super-2 number, since 2×122100021122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122100021097 and 122100021106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30525005279 + ... + 30525005282.

Almost surely, 2^122100021122 is an apocalyptic number.

122100021122 is a deficient number, since it is larger than the sum of its proper divisors (61050010564).

122100021122 is an equidigital number, since it uses as much as digits as its factorization.

122100021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61050010563.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122100021122 its reverse (221120001221), we get a palindrome (343220022343).

The spelling of 122100021122 in words is "one hundred twenty-two billion, one hundred million, twenty-one thousand, one hundred twenty-two".