1022212100 has 72 divisors (see below), whose sum is σ = 2730116928. Its totient is φ = 323510400.

The previous prime is 1022212049. The next prime is 1022212117. The reversal of 1022212100 is 12122201.

It is a happy number.

1022212100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47066 + ... + 65265.

Almost surely, 2^1022212100 is an apocalyptic number.

1022212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022212100 is an abundant number, since it is smaller than the sum of its proper divisors (1707904828).

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

1022212100 is a wasteful number, since it uses less digits than its factorization.

1022212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112365 (or 112358 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1022212100 is about 31972.0518578336. The cubic root of 1022212100 is about 1007.3498802451.

Adding to 1022212100 its reverse (12122201), we get a palindrome (1034334301).

It can be divided in two parts, 10222 and 12100, that added together give a palindrome (22322).

The spelling of 1022212100 in words is "one billion, twenty-two million, two hundred twelve thousand, one hundred".