402201120020 has 24 divisors (see below), whose sum is σ = 965282688384. Its totient is φ = 137897526816.

The previous prime is 402201120001. The next prime is 402201120053. The reversal of 402201120020 is 20021102204.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 402201119977 and 402201120004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436432432 + ... + 1436432711.

It is an arithmetic number, because the mean of its divisors is an integer number (40220112016).

Almost surely, 2^402201120020 is an apocalyptic number.

It is an amenable number.

402201120020 is an abundant number, since it is smaller than the sum of its proper divisors (563081568364).

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

402201120020 is a wasteful number, since it uses less digits than its factorization.

402201120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872865159 (or 2872865157 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 402201120020 its reverse (20021102204), we get a palindrome (422222222224).

The spelling of 402201120020 in words is "four hundred two billion, two hundred one million, one hundred twenty thousand, twenty".