120212000021021 has 16 divisors (see below), whose sum is σ = 124597595865600. Its totient is φ = 115859048692800.

The previous prime is 120212000020999. The next prime is 120212000021093. The reversal of 120212000021021 is 120120000212021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120212000021021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120212000020987 and 120212000021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212000021221) 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, 383411 + ... + 15510351.

It is an arithmetic number, because the mean of its divisors is an integer number (7787349741600).

Almost surely, 2^{120212000021021} is an apocalyptic number.

It is an amenable number.

120212000021021 is a deficient number, since it is larger than the sum of its proper divisors (4385595844579).

120212000021021 is a wasteful number, since it uses less digits than its factorization.

120212000021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15128020.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120212000021021 its reverse (120120000212021), we get a palindrome (240332000233042).

The spelling of 120212000021021 in words is "one hundred twenty trillion, two hundred twelve billion, twenty-one thousand, twenty-one".