100222111020 has 24 divisors (see below), whose sum is σ = 280621911024. Its totient is φ = 26725896256.

The previous prime is 100222111009. The next prime is 100222111021. The reversal of 100222111020 is 20111222001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100222110987 and 100222111005.

It is not an unprimeable number, because it can be changed into a prime (100222111021) 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, 835184199 + ... + 835184318.

It is an arithmetic number, because the mean of its divisors is an integer number (11692579626).

Almost surely, 2^100222111020 is an apocalyptic number.

100222111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222111020 is an abundant number, since it is smaller than the sum of its proper divisors (180399800004).

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

100222111020 is a wasteful number, since it uses less digits than its factorization.

100222111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670368529 (or 1670368527 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100222111020 its reverse (20111222001), we get a palindrome (120333333021).

The spelling of 100222111020 in words is "one hundred billion, two hundred twenty-two million, one hundred eleven thousand, twenty".