20120012220122 has 32 divisors (see below), whose sum is σ = 31191630543360. Its totient is φ = 9723601704960.

The previous prime is 20120012220073. The next prime is 20120012220163. The reversal of 20120012220122 is 22102221002102.

It is a happy number.

It is a super-2 number, since 2×20120012220122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20120012220122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186738938 + ... + 186846650.

It is an arithmetic number, because the mean of its divisors is an integer number (974738454480).

Almost surely, 2^{20120012220122} is an apocalyptic number.

20120012220122 is a deficient number, since it is larger than the sum of its proper divisors (11071618323238).

20120012220122 is a wasteful number, since it uses less digits than its factorization.

20120012220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111398.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20120012220122 its reverse (22102221002102), we get a palindrome (42222233222224).

The spelling of 20120012220122 in words is "twenty trillion, one hundred twenty billion, twelve million, two hundred twenty thousand, one hundred twenty-two".