122100201211100 has 144 divisors (see below), whose sum is σ = 323355017287680. Its totient is φ = 39115525881600.

The previous prime is 122100201211049. The next prime is 122100201211103. The reversal of 122100201211100 is 1112102001221.

It is a super-2 number, since 2×122100201211100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100201211103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96383414 + ... + 97642013.

Almost surely, 2^{122100201211100} is an apocalyptic number.

122100201211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100201211100 is an abundant number, since it is smaller than the sum of its proper divisors (201254816076580).

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

122100201211100 is a wasteful number, since it uses less digits than its factorization.

122100201211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194025508 (or 194025501 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122100201211100 its reverse (1112102001221), we get a palindrome (123212303212321).

The spelling of 122100201211100 in words is "one hundred twenty-two trillion, one hundred billion, two hundred one million, two hundred eleven thousand, one hundred".