100012220122 has 32 divisors (see below), whose sum is σ = 156299419584. Its totient is φ = 47961014400.

The previous prime is 100012220117. The next prime is 100012220123. The reversal of 100012220122 is 221022210001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100012220123) 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, 1105888 + ... + 1192900.

It is an arithmetic number, because the mean of its divisors is an integer number (4884356862).

Almost surely, 2^100012220122 is an apocalyptic number.

100012220122 is a deficient number, since it is larger than the sum of its proper divisors (56287199462).

100012220122 is a wasteful number, since it uses less digits than its factorization.

100012220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87294.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100012220122 its reverse (221022210001), we get a palindrome (321034430123).

The spelling of 100012220122 in words is "one hundred billion, twelve million, two hundred twenty thousand, one hundred twenty-two".