100221022012 has 24 divisors (see below), whose sum is σ = 185726777040. Its totient is φ = 47156962560.

The previous prime is 100221021977. The next prime is 100221022067. The reversal of 100221022012 is 210220122001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100221021983 and 100221022001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484962 + ... + 660022.

It is an arithmetic number, because the mean of its divisors is an integer number (7738615710).

Almost surely, 2^100221022012 is an apocalyptic number.

It is an amenable number.

100221022012 is a deficient number, since it is larger than the sum of its proper divisors (85505755028).

100221022012 is a wasteful number, since it uses less digits than its factorization.

100221022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183501 (or 183499 counting only the distinct ones).

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

Adding to 100221022012 its reverse (210220122001), we get a palindrome (310441144013).

The spelling of 100221022012 in words is "one hundred billion, two hundred twenty-one million, twenty-two thousand, twelve".