120211102021021 has 16 divisors (see below), whose sum is σ = 131231816280000. Its totient is φ = 109205798665600.

The previous prime is 120211102020937. The next prime is 120211102021033. The reversal of 120211102021021 is 120120201112021.

It is a cyclic number.

It is not a de Polignac number, because 120211102021021 - 2¹⁵ = 120211101988253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120211102020986 and 120211102021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211109021021) 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 15 ways as a sum of consecutive naturals, for example, 490276785 + ... + 490521913.

It is an arithmetic number, because the mean of its divisors is an integer number (8201988517500).

Almost surely, 2^{120211102021021} is an apocalyptic number.

120211102021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120211102021021 is a deficient number, since it is larger than the sum of its proper divisors (11020714258979).

120211102021021 is a wasteful number, since it uses less digits than its factorization.

120211102021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276380.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120211102021021 its reverse (120120201112021), we get a palindrome (240331303133042).

The spelling of 120211102021021 in words is "one hundred twenty trillion, two hundred eleven billion, one hundred two million, twenty-one thousand, twenty-one".