2220120012021 has 16 divisors (see below), whose sum is σ = 2962157576064. Its totient is φ = 1479081570624.

The previous prime is 2220120012017. The next prime is 2220120012031. The reversal of 2220120012021 is 1202100210222.

It is not a de Polignac number, because 2220120012021 - 2² = 2220120012017 is a prime.

It is a super-2 number, since 2×2220120012021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220120012031) 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, 27888751 + ... + 27968243.

It is an arithmetic number, because the mean of its divisors is an integer number (185134848504).

Almost surely, 2^{2220120012021} is an apocalyptic number.

It is an amenable number.

2220120012021 is a deficient number, since it is larger than the sum of its proper divisors (742037564043).

2220120012021 is a wasteful number, since it uses less digits than its factorization.

2220120012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85660.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2220120012021 its reverse (1202100210222), we get a palindrome (3422220222243).

The spelling of 2220120012021 in words is "two trillion, two hundred twenty billion, one hundred twenty million, twelve thousand, twenty-one".