10212220121100 has 36 divisors (see below), whose sum is σ = 29547356884584. Its totient is φ = 2723258698880.

The previous prime is 10212220121087. The next prime is 10212220121143. The reversal of 10212220121100 is 112102221201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10212220121100.

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, 17020366569 + ... + 17020367168.

Almost surely, 2^{10212220121100} is an apocalyptic number.

10212220121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212220121100 is an abundant number, since it is smaller than the sum of its proper divisors (19335136763484).

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

10212220121100 is a wasteful number, since it uses less digits than its factorization.

10212220121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34040733754 (or 34040733747 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10212220121100 its reverse (112102221201), we get a palindrome (10324322342301).

The spelling of 10212220121100 in words is "ten trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, one hundred".