122100021211320 has 96 divisors (see below), whose sum is σ = 397604686564800. Its totient is φ = 32496037030656.

The previous prime is 122100021211277. The next prime is 122100021211327. The reversal of 122100021211320 is 23112120001221.

122100021211320 is a `hidden beast` number, since 1 + 22 + 100 + 0 + 212 + 11 + 320 = 666.

It is a super-2 number, since 2×122100021211320² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122100021211293 and 122100021211302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100021211327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332986432 + ... + 333352911.

It is an arithmetic number, because the mean of its divisors is an integer number (4141715485050).

Almost surely, 2^{122100021211320} is an apocalyptic number.

122100021211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100021211320 is an abundant number, since it is smaller than the sum of its proper divisors (275504665353480).

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

122100021211320 is a wasteful number, since it uses less digits than its factorization.

122100021211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666339869 (or 666339862 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122100021211320 its reverse (23112120001221), we get a palindrome (145212141212541).

The spelling of 122100021211320 in words is "one hundred twenty-two trillion, one hundred billion, twenty-one million, two hundred eleven thousand, three hundred twenty".