2021270391425 has 12 divisors (see below), whose sum is σ = 2515692673980. Its totient is φ = 1611005094720.

The previous prime is 2021270391391. The next prime is 2021270391443. The reversal of 2021270391425 is 5241930721202.

It can be written as a sum of positive squares in 6 ways, for example, as 246684068929 + 1774586322496 = 496673^2 + 1332136^2 .

It is not a de Polignac number, because 2021270391425 - 2⁸ = 2021270391169 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 150273602 + ... + 150287051.

It is an arithmetic number, because the mean of its divisors is an integer number (209641056165).

Almost surely, 2^{2021270391425} is an apocalyptic number.

2021270391425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2021270391425 is a deficient number, since it is larger than the sum of its proper divisors (494422282555).

2021270391425 is a wasteful number, since it uses less digits than its factorization.

2021270391425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300560932 (or 300560927 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 2021270391425 in words is "two trillion, twenty-one billion, two hundred seventy million, three hundred ninety-one thousand, four hundred twenty-five".