20022222202122 has 32 divisors (see below), whose sum is σ = 45889779843072. Its totient is φ = 5705047349424.

The previous prime is 20022222202117. The next prime is 20022222202123. The reversal of 20022222202122 is 22120222222002.

It is a super-2 number, since 2×20022222202122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20022222202123) by changing a digit.

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, 649466298 + ... + 649497125.

It is an arithmetic number, because the mean of its divisors is an integer number (1434055620096).

Almost surely, 2^{20022222202122} is an apocalyptic number.

20022222202122 is an abundant number, since it is smaller than the sum of its proper divisors (25867557640950).

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

20022222202122 is a wasteful number, since it uses less digits than its factorization.

20022222202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298963802.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20022222202122 its reverse (22120222222002), we get a palindrome (42142444424124).

The spelling of 20022222202122 in words is "twenty trillion, twenty-two billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-two".