401134202121 has 4 divisors (see below), whose sum is σ = 534845602832. Its totient is φ = 267422801412.

The previous prime is 401134202059. The next prime is 401134202123. The reversal of 401134202121 is 121202431104.

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 not a de Polignac number, because 401134202121 - 2⁶ = 401134202057 is a prime.

It is a super-2 number, since 2×401134202121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401134202123) 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, 66855700351 + ... + 66855700356.

It is an arithmetic number, because the mean of its divisors is an integer number (133711400708).

Almost surely, 2^401134202121 is an apocalyptic number.

It is an amenable number.

401134202121 is a deficient number, since it is larger than the sum of its proper divisors (133711400711).

401134202121 is a wasteful number, since it uses less digits than its factorization.

401134202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133711400710.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 401134202121 its reverse (121202431104), we get a palindrome (522336633225).

The spelling of 401134202121 in words is "four hundred one billion, one hundred thirty-four million, two hundred two thousand, one hundred twenty-one".