2021424221200 has 60 divisors (see below), whose sum is σ = 4904555667588. Its totient is φ = 800564032000.

The previous prime is 2021424221161. The next prime is 2021424221263. The reversal of 2021424221200 is 21224241202.

It can be written as a sum of positive squares in 6 ways, for example, as 11335435024 + 2010088786176 = 106468^2 + 1417776^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24977227 + ... + 25058026.

Almost surely, 2^{2021424221200} is an apocalyptic number.

2021424221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021424221200 is an abundant number, since it is smaller than the sum of its proper divisors (2883131446388).

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

2021424221200 is a wasteful number, since it uses less digits than its factorization.

2021424221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50035372 (or 50035361 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2021424221200 its reverse (21224241202), we get a palindrome (2042648462402).

The spelling of 2021424221200 in words is "two trillion, twenty-one billion, four hundred twenty-four million, two hundred twenty-one thousand, two hundred".