202055612421 has 32 divisors (see below), whose sum is σ = 303245107200. Its totient is φ = 118739484864.

The previous prime is 202055612417. The next prime is 202055612443. The reversal of 202055612421 is 124216550202.

It is not a de Polignac number, because 202055612421 - 2² = 202055612417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202055612021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358930 + ... + 730028.

It is an arithmetic number, because the mean of its divisors is an integer number (9476409600).

Almost surely, 2^202055612421 is an apocalyptic number.

It is an amenable number.

202055612421 is a deficient number, since it is larger than the sum of its proper divisors (101189494779).

202055612421 is a wasteful number, since it uses less digits than its factorization.

202055612421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371745.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 202055612421 in words is "two hundred two billion, fifty-five million, six hundred twelve thousand, four hundred twenty-one".