122100201100 has 18 divisors (see below), whose sum is σ = 264957436604. Its totient is φ = 48840080400.

The previous prime is 122100201029. The next prime is 122100201103. The reversal of 122100201100 is 1102001221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (122100201103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610500906 + ... + 610501105.

Almost surely, 2^122100201100 is an apocalyptic number.

122100201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100201100 is an abundant number, since it is smaller than the sum of its proper divisors (142857235504).

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

122100201100 is a wasteful number, since it uses less digits than its factorization.

122100201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221002025 (or 1221002018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122100201100 its reverse (1102001221), we get a palindrome (123202202321).

The spelling of 122100201100 in words is "one hundred twenty-two billion, one hundred million, two hundred one thousand, one hundred".