122100100021200 has 120 divisors (see below), whose sum is σ = 447002651917888. Its totient is φ = 27908594288640.

The previous prime is 122100100021199. The next prime is 122100100021201. The reversal of 122100100021200 is 2120001001221.

122100100021200 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (122100100021199) and next prime (122100100021201).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100100021201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7267854697 + ... + 7267871496.

Almost surely, 2^{122100100021200} is an apocalyptic number.

122100100021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100100021200 is an abundant number, since it is smaller than the sum of its proper divisors (324902551896688).

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

122100100021200 is a wasteful number, since it uses less digits than its factorization.

122100100021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14535726221 (or 14535726210 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122100100021200 its reverse (2120001001221), we get a palindrome (124220101022421).

The spelling of 122100100021200 in words is "one hundred twenty-two trillion, one hundred billion, one hundred million, twenty-one thousand, two hundred".