402021303222 has 64 divisors (see below), whose sum is σ = 1002758045184. Its totient is φ = 104388272640.

The previous prime is 402021303161. The next prime is 402021303227. The reversal of 402021303222 is 222303120204.

It is a super-2 number, since 2×402021303222² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402021303227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1351008 + ... + 1621500.

It is an arithmetic number, because the mean of its divisors is an integer number (15668094456).

Almost surely, 2^402021303222 is an apocalyptic number.

402021303222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

402021303222 is an abundant number, since it is smaller than the sum of its proper divisors (600736741962).

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

402021303222 is a wasteful number, since it uses less digits than its factorization.

402021303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273733.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 402021303222 its reverse (222303120204), we get a palindrome (624324423426).

The spelling of 402021303222 in words is "four hundred two billion, twenty-one million, three hundred three thousand, two hundred twenty-two".