1021100122210 has 128 divisors (see below), whose sum is σ = 2161780346880. Its totient is φ = 339986191104.

The previous prime is 1021100122169. The next prime is 1021100122219. The reversal of 1021100122210 is 122210011201.

It is not an unprimeable number, because it can be changed into a prime (1021100122219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 450020956 + ... + 450023224.

It is an arithmetic number, because the mean of its divisors is an integer number (16888908960).

Almost surely, 2^{1021100122210} is an apocalyptic number.

1021100122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021100122210 is an abundant number, since it is smaller than the sum of its proper divisors (1140680224670).

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

1021100122210 is a wasteful number, since it uses less digits than its factorization.

1021100122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021100122210 its reverse (122210011201), we get a palindrome (1143310133411).

The spelling of 1021100122210 in words is "one trillion, twenty-one billion, one hundred million, one hundred twenty-two thousand, two hundred ten".