20101020222 has 32 divisors (see below), whose sum is σ = 40939286400. Its totient is φ = 6577776288.

The previous prime is 20101020139. The next prime is 20101020257. The reversal of 20101020222 is 22202010102.

It is a junction number, because it is equal to n+sod(n) for n = 20101020198 and 20101020207.

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, 223188 + ... + 300024.

It is an arithmetic number, because the mean of its divisors is an integer number (1279352700).

Almost surely, 2^20101020222 is an apocalyptic number.

20101020222 is an abundant number, since it is smaller than the sum of its proper divisors (20838266178).

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

20101020222 is a wasteful number, since it uses less digits than its factorization.

20101020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77640.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20101020222 its reverse (22202010102), we get a palindrome (42303030324).

The spelling of 20101020222 in words is "twenty billion, one hundred one million, twenty thousand, two hundred twenty-two".