120100011221021 has 32 divisors (see below), whose sum is σ = 144173474847360. Its totient is φ = 98835563667456.

The previous prime is 120100011220979. The next prime is 120100011221023. The reversal of 120100011221021 is 120122110001021.

It is a cyclic number.

It is not a de Polignac number, because 120100011221021 - 2²⁶ = 120099944112157 is a prime.

It is a super-2 number, since 2×120100011221021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120100011220987 and 120100011221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100011221023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29794925 + ... + 33584781.

It is an arithmetic number, because the mean of its divisors is an integer number (4505421088980).

Almost surely, 2^{120100011221021} is an apocalyptic number.

It is an amenable number.

120100011221021 is a deficient number, since it is larger than the sum of its proper divisors (24073463626339).

120100011221021 is a wasteful number, since it uses less digits than its factorization.

120100011221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797453.

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

Adding to 120100011221021 its reverse (120122110001021), we get a palindrome (240222121222042).

The spelling of 120100011221021 in words is "one hundred twenty trillion, one hundred billion, eleven million, two hundred twenty-one thousand, twenty-one".