402201212240 has 80 divisors (see below), whose sum is σ = 942665665536. Its totient is φ = 159587097600.

The previous prime is 402201212197. The next prime is 402201212279. The reversal of 402201212240 is 42212102204.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 4972925 + ... + 5053155.

Almost surely, 2^402201212240 is an apocalyptic number.

402201212240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402201212240 is an abundant number, since it is smaller than the sum of its proper divisors (540464453296).

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

402201212240 is a wasteful number, since it uses less digits than its factorization.

402201212240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80748 (or 80742 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 402201212240 its reverse (42212102204), we get a palindrome (444413314444).

The spelling of 402201212240 in words is "four hundred two billion, two hundred one million, two hundred twelve thousand, two hundred forty".