20221223402 has 16 divisors (see below), whose sum is σ = 30484752000. Its totient is φ = 10059668640.

The previous prime is 20221223389. The next prime is 20221223413. The reversal of 20221223402 is 20432212202.

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, 2193599 + ... + 2202797.

It is an arithmetic number, because the mean of its divisors is an integer number (1905297000).

Almost surely, 2^20221223402 is an apocalyptic number.

20221223402 is a deficient number, since it is larger than the sum of its proper divisors (10263528598).

20221223402 is a wasteful number, since it uses less digits than its factorization.

20221223402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14621.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20221223402 its reverse (20432212202), we get a palindrome (40653435604).

The spelling of 20221223402 in words is "twenty billion, two hundred twenty-one million, two hundred twenty-three thousand, four hundred two".