20101023222 has 32 divisors (see below), whose sum is σ = 45949946112. Its totient is φ = 5742555744.

The previous prime is 20101023211. The next prime is 20101023253. The reversal of 20101023222 is 22232010102.

It is a happy number.

It is a super-2 number, since 2×20101023222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535708 + ... + 572000.

It is an arithmetic number, because the mean of its divisors is an integer number (1435935816).

Almost surely, 2^20101023222 is an apocalyptic number.

20101023222 is an abundant number, since it is smaller than the sum of its proper divisors (25848922890).

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

20101023222 is a wasteful number, since it uses less digits than its factorization.

20101023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49492.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20101023222 its reverse (22232010102), we get a palindrome (42333033324).

The spelling of 20101023222 in words is "twenty billion, one hundred one million, twenty-three thousand, two hundred twenty-two".