401421205200 has 60 divisors (see below), whose sum is σ = 1285885931168. Its totient is φ = 107045654400.

The previous prime is 401421205181. The next prime is 401421205249. The reversal of 401421205200 is 2502124104.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×401421205200² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167257636 + ... + 167260035.

Almost surely, 2^401421205200 is an apocalyptic number.

401421205200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401421205200 is an abundant number, since it is smaller than the sum of its proper divisors (884464725968).

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

401421205200 is a wasteful number, since it uses less digits than its factorization.

401421205200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334517692 (or 334517681 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 401421205200 its reverse (2502124104), we get a palindrome (403923329304).

The spelling of 401421205200 in words is "four hundred one billion, four hundred twenty-one million, two hundred five thousand, two hundred".