20122221002 has 32 divisors (see below), whose sum is σ = 33970527360. Its totient is φ = 8869734720.

The previous prime is 20122221001. The next prime is 20122221017. The reversal of 20122221002 is 20012222102.

It is not an unprimeable number, because it can be changed into a prime (20122221001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368552 + ... + 419612.

It is an arithmetic number, because the mean of its divisors is an integer number (1061578980).

Almost surely, 2^20122221002 is an apocalyptic number.

20122221002 is a deficient number, since it is larger than the sum of its proper divisors (13848306358).

20122221002 is a wasteful number, since it uses less digits than its factorization.

20122221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51758.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20122221002 its reverse (20012222102), we get a palindrome (40134443104).

It can be divided in two parts, 2012222100 and 2, that added together give a palindrome (2012222102).

The spelling of 20122221002 in words is "twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, two".