2021220211012 has 24 divisors (see below), whose sum is σ = 3611425091904. Its totient is φ = 989565114912.

The previous prime is 2021220211001. The next prime is 2021220211013. The reversal of 2021220211012 is 2101120221202.

It is a happy number.

It is a super-2 number, since 2×2021220211012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021220211013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22535683 + ... + 22625194.

It is an arithmetic number, because the mean of its divisors is an integer number (150476045496).

Almost surely, 2^{2021220211012} is an apocalyptic number.

It is an amenable number.

2021220211012 is a deficient number, since it is larger than the sum of its proper divisors (1590204880892).

2021220211012 is a wasteful number, since it uses less digits than its factorization.

2021220211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45161115 (or 45161113 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021220211012 its reverse (2101120221202), we get a palindrome (4122340432214).

The spelling of 2021220211012 in words is "two trillion, twenty-one billion, two hundred twenty million, two hundred eleven thousand, twelve".