2021022211051 has 2 divisors, whose sum is σ = 2021022211052. Its totient is φ = 2021022211050.

The previous prime is 2021022210997. The next prime is 2021022211129. The reversal of 2021022211051 is 1501122201202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021022211051 - 2²⁷ = 2020887993323 is a prime.

It is a super-2 number, since 2×2021022211051² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021029211051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010511105525 + 1010511105526.

It is an arithmetic number, because the mean of its divisors is an integer number (1010511105526).

Almost surely, 2^{2021022211051} is an apocalyptic number.

2021022211051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021022211051 is an equidigital number, since it uses as much as digits as its factorization.

2021022211051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 2021022211051 its reverse (1501122201202), we get a palindrome (3522144412253).

The spelling of 2021022211051 in words is "two trillion, twenty-one billion, twenty-two million, two hundred eleven thousand, fifty-one".