2021229568458 has 12 divisors (see below), whose sum is σ = 4379330731698. Its totient is φ = 673743189480.

The previous prime is 2021229568411. The next prime is 2021229568459. The reversal of 2021229568458 is 8548659221202.

2021229568458 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 2 + 29 + 568 + 4 + 58 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1440727291809 + 580502276649 = 1200303^2 + 761907^2 .

It is a super-3 number, since 3×2021229568458³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021229568459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56145265773 + ... + 56145265808.

Almost surely, 2^{2021229568458} is an apocalyptic number.

2021229568458 is an abundant number, since it is smaller than the sum of its proper divisors (2358101163240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021229568458 is a wasteful number, since it uses less digits than its factorization.

2021229568458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112290531589 (or 112290531586 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 2021229568458 in words is "two trillion, twenty-one billion, two hundred twenty-nine million, five hundred sixty-eight thousand, four hundred fifty-eight".