2220101121021 has 32 divisors (see below), whose sum is σ = 3393202959360. Its totient is φ = 1264809821184.

The previous prime is 2220101120957. The next prime is 2220101121023. The reversal of 2220101121021 is 1201211010222.

It is not a de Polignac number, because 2220101121021 - 2⁶ = 2220101120957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220101121023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21860466 + ... + 21961788.

It is an arithmetic number, because the mean of its divisors is an integer number (106037592480).

Almost surely, 2^{2220101121021} is an apocalyptic number.

2220101121021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2220101121021 is a deficient number, since it is larger than the sum of its proper divisors (1173101838339).

2220101121021 is a wasteful number, since it uses less digits than its factorization.

2220101121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104465.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2220101121021 its reverse (1201211010222), we get a palindrome (3421312131243).

The spelling of 2220101121021 in words is "two trillion, two hundred twenty billion, one hundred one million, one hundred twenty-one thousand, twenty-one".