21023033222 has 16 divisors (see below), whose sum is σ = 32856026112. Its totient is φ = 10077362760.

The previous prime is 21023033209. The next prime is 21023033233. The reversal of 21023033222 is 22233032012.

It is a junction number, because it is equal to n+sod(n) for n = 21023033194 and 21023033203.

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, 1577858 + ... + 1591125.

It is an arithmetic number, because the mean of its divisors is an integer number (2053501632).

Almost surely, 2^21023033222 is an apocalyptic number.

21023033222 is a deficient number, since it is larger than the sum of its proper divisors (11832992890).

21023033222 is a wasteful number, since it uses less digits than its factorization.

21023033222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169123.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21023033222 its reverse (22233032012), we get a palindrome (43256065234).

The spelling of 21023033222 in words is "twenty-one billion, twenty-three million, thirty-three thousand, two hundred twenty-two".