122111201120100 has 72 divisors (see below), whose sum is σ = 353337466933920. Its totient is φ = 32560308775680.

The previous prime is 122111201120089. The next prime is 122111201120113. The reversal of 122111201120100 is 1021102111221.

It is a happy number.

It is a super-2 number, since 2×122111201120100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122111201120100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13083705 + ... + 20381504.

Almost surely, 2^{122111201120100} is an apocalyptic number.

122111201120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111201120100 is an abundant number, since it is smaller than the sum of its proper divisors (231226265813820).

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

122111201120100 is a wasteful number, since it uses less digits than its factorization.

122111201120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33477389 (or 33477382 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122111201120100 its reverse (1021102111221), we get a palindrome (123132303231321).

The spelling of 122111201120100 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred one million, one hundred twenty thousand, one hundred".