1022100222100 has 36 divisors (see below), whose sum is σ = 2218740997564. Its totient is φ = 408695662080.

The previous prime is 1022100222083. The next prime is 1022100222119. The reversal of 1022100222100 is 12220012201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 186345895684 + 835754326416 = 431678^2 + 914196^2 .

It is a super-3 number, since 3×1022100222100³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1520619 + ... + 2087218.

Almost surely, 2^{1022100222100} is an apocalyptic number.

1022100222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022100222100 is an abundant number, since it is smaller than the sum of its proper divisors (1196640775464).

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

1022100222100 is a wasteful number, since it uses less digits than its factorization.

1022100222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610684 (or 3610677 counting only the distinct ones).

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

Adding to 1022100222100 its reverse (12220012201), we get a palindrome (1034320234301).

The spelling of 1022100222100 in words is "one trillion, twenty-two billion, one hundred million, two hundred twenty-two thousand, one hundred".