202551212441 has 4 divisors (see below), whose sum is σ = 208025569572. Its totient is φ = 197076855312.

The previous prime is 202551212389. The next prime is 202551212447. The reversal of 202551212441 is 144212155202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76067846416 + 126483366025 = 275804^2 + 355645^2 .

It is a cyclic number.

It is not a de Polignac number, because 202551212441 - 2⁶ = 202551212377 is a prime.

It is a super-2 number, since 2×202551212441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202551212447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2737178510 + ... + 2737178583.

It is an arithmetic number, because the mean of its divisors is an integer number (52006392393).

Almost surely, 2^202551212441 is an apocalyptic number.

It is an amenable number.

202551212441 is a deficient number, since it is larger than the sum of its proper divisors (5474357131).

202551212441 is an equidigital number, since it uses as much as digits as its factorization.

202551212441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474357130.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 202551212441 its reverse (144212155202), we get a palindrome (346763367643).

The spelling of 202551212441 in words is "two hundred two billion, five hundred fifty-one million, two hundred twelve thousand, four hundred forty-one".