20022220322 has 16 divisors (see below), whose sum is σ = 34246151352. Its totient is φ = 8697434880.

The previous prime is 20022220319. The next prime is 20022220327. The reversal of 20022220322 is 22302222002.

It can be written as a sum of positive squares in 4 ways, for example, as 19951845001 + 70375321 = 141251^2 + 8389^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20022220322.

It is not an unprimeable number, because it can be changed into a prime (20022220327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22649129 + ... + 22650012.

Almost surely, 2^20022220322 is an apocalyptic number.

20022220322 is a deficient number, since it is larger than the sum of its proper divisors (14223931030).

20022220322 is a wasteful number, since it uses less digits than its factorization.

20022220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45299173.

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 20022220322 its reverse (22302222002), we get a palindrome (42324442324).

The spelling of 20022220322 in words is "twenty billion, twenty-two million, two hundred twenty thousand, three hundred twenty-two".