100021031222 has 16 divisors (see below), whose sum is σ = 171493313280. Its totient is φ = 42858984168.

The previous prime is 100021031221. The next prime is 100021031267. The reversal of 100021031222 is 222130120001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 100021031197 and 100021031206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021031221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510572 + ... + 678767.

It is an arithmetic number, because the mean of its divisors is an integer number (10718332080).

Almost surely, 2^100021031222 is an apocalyptic number.

100021031222 is a deficient number, since it is larger than the sum of its proper divisors (71472282058).

100021031222 is a wasteful number, since it uses less digits than its factorization.

100021031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195355.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100021031222 its reverse (222130120001), we get a palindrome (322151151223).

The spelling of 100021031222 in words is "one hundred billion, twenty-one million, thirty-one thousand, two hundred twenty-two".