120211212200021 has 16 divisors (see below), whose sum is σ = 123620768365248. Its totient is φ = 116830501200000.

The previous prime is 120211212199999. The next prime is 120211212200099. The reversal of 120211212200021 is 120002212112021.

It is not a de Polignac number, because 120211212200021 - 2¹⁴ = 120211212183637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211212209021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5174921 + ... + 16346321.

It is an arithmetic number, because the mean of its divisors is an integer number (7726298022828).

Almost surely, 2^{120211212200021} is an apocalyptic number.

It is an amenable number.

120211212200021 is a deficient number, since it is larger than the sum of its proper divisors (3409556165227).

120211212200021 is a wasteful number, since it uses less digits than its factorization.

120211212200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11172692.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120211212200021 its reverse (120002212112021), we get a palindrome (240213424312042).

The spelling of 120211212200021 in words is "one hundred twenty trillion, two hundred eleven billion, two hundred twelve million, two hundred thousand, twenty-one".