2252151022021 has 4 divisors (see below), whose sum is σ = 2257015279552. Its totient is φ = 2247286764492.

The previous prime is 2252151022013. The next prime is 2252151022057. The reversal of 2252151022021 is 1202201512522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2252151022021 - 2³ = 2252151022013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2252151022921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2432128071 + ... + 2432128996.

It is an arithmetic number, because the mean of its divisors is an integer number (564253819888).

Almost surely, 2^{2252151022021} is an apocalyptic number.

It is an amenable number.

2252151022021 is a deficient number, since it is larger than the sum of its proper divisors (4864257531).

2252151022021 is an equidigital number, since it uses as much as digits as its factorization.

2252151022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864257530.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 2252151022021 its reverse (1202201512522), we get a palindrome (3454352534543).

The spelling of 2252151022021 in words is "two trillion, two hundred fifty-two billion, one hundred fifty-one million, twenty-two thousand, twenty-one".