400201203122 has 32 divisors (see below), whose sum is σ = 694366443264. Its totient is φ = 169445908800.

The previous prime is 400201203079. The next prime is 400201203133. The reversal of 400201203122 is 221302102004.

It is a super-2 number, since 2×400201203122² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400201203122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277472 + ... + 936692.

It is an arithmetic number, because the mean of its divisors is an integer number (21698951352).

Almost surely, 2^400201203122 is an apocalyptic number.

400201203122 is a deficient number, since it is larger than the sum of its proper divisors (294165240142).

400201203122 is a wasteful number, since it uses less digits than its factorization.

400201203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659754.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 400201203122 its reverse (221302102004), we get a palindrome (621503305126).

The spelling of 400201203122 in words is "four hundred billion, two hundred one million, two hundred three thousand, one hundred twenty-two".