1021100122 has 24 divisors (see below), whose sum is σ = 1804282560. Its totient is φ = 432071640.

The previous prime is 1021100099. The next prime is 1021100141. The reversal of 1021100122 is 2210011201.

1021100122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021100099 and 1021100108.

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, 58204 + ... + 73687.

It is an arithmetic number, because the mean of its divisors is an integer number (75178440).

Almost surely, 2^1021100122 is an apocalyptic number.

1021100122 is a deficient number, since it is larger than the sum of its proper divisors (783182438).

1021100122 is a wasteful number, since it uses less digits than its factorization.

1021100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131986 (or 131979 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1021100122 is about 31954.6572818423. The cubic root of 1021100122 is about 1006.9844774996.

Adding to 1021100122 its reverse (2210011201), we get a palindrome (3231111323).

The spelling of 1021100122 in words is "one billion, twenty-one million, one hundred thousand, one hundred twenty-two".