21022002302 has 16 divisors (see below), whose sum is σ = 36043780992. Its totient is φ = 9007913880.

The previous prime is 21022002271. The next prime is 21022002319. The reversal of 21022002302 is 20320022012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37988 + ... + 208535.

It is an arithmetic number, because the mean of its divisors is an integer number (2252736312).

Almost surely, 2^21022002302 is an apocalyptic number.

21022002302 is a deficient number, since it is larger than the sum of its proper divisors (15021778690).

21022002302 is a wasteful number, since it uses less digits than its factorization.

21022002302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252623.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 21022002302 its reverse (20320022012), we get a palindrome (41342024314).

The spelling of 21022002302 in words is "twenty-one billion, twenty-two million, two thousand, three hundred two".