401212032100 has 72 divisors (see below), whose sum is σ = 954600026688. Its totient is φ = 145154620800.

The previous prime is 401212032049. The next prime is 401212032101. The reversal of 401212032100 is 1230212104.

It is a super-2 number, since 2×401212032100² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401212032101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 709032 + ... + 1142431.

It is an arithmetic number, because the mean of its divisors is an integer number (13258333704).

Almost surely, 2^401212032100 is an apocalyptic number.

It is an amenable number.

401212032100 is an abundant number, since it is smaller than the sum of its proper divisors (553387994588).

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

401212032100 is a wasteful number, since it uses less digits than its factorization.

401212032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851685 (or 1851678 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 401212032100 its reverse (1230212104), we get a palindrome (402442244204).

The spelling of 401212032100 in words is "four hundred one billion, two hundred twelve million, thirty-two thousand, one hundred".