1022120002100 has 36 divisors (see below), whose sum is σ = 2218061745900. Its totient is φ = 408836693760.

The previous prime is 1022120002097. The next prime is 1022120002133. The reversal of 1022120002100 is 12000212201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 45572856484 + 976547145616 = 213478^2 + 988204^2 .

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, 4136846 + ... + 4376954.

It is an arithmetic number, because the mean of its divisors is an integer number (61612826275).

Almost surely, 2^{1022120002100} is an apocalyptic number.

1022120002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022120002100 is an abundant number, since it is smaller than the sum of its proper divisors (1195941743800).

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

1022120002100 is a wasteful number, since it uses less digits than its factorization.

1022120002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282692 (or 282685 counting only the distinct ones).

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

Adding to 1022120002100 its reverse (12000212201), we get a palindrome (1034120214301).

The spelling of 1022120002100 in words is "one trillion, twenty-two billion, one hundred twenty million, two thousand, one hundred".