122211121021100 has 36 divisors (see below), whose sum is σ = 265198649247000. Its totient is φ = 48884353176960.

The previous prime is 122211121021069. The next prime is 122211121021109. The reversal of 122211121021100 is 1120121112221.

It is not an unprimeable number, because it can be changed into a prime (122211121021109) 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, 74072951 + ... + 75704849.

It is an arithmetic number, because the mean of its divisors is an integer number (7366629145750).

Almost surely, 2^{122211121021100} is an apocalyptic number.

122211121021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211121021100 is an abundant number, since it is smaller than the sum of its proper divisors (142987528225900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122211121021100 is a wasteful number, since it uses less digits than its factorization.

122211121021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380802 (or 2380795 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122211121021100 its reverse (1120121112221), we get a palindrome (123331242133321).

The spelling of 122211121021100 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred".