1021322101122 has 128 divisors (see below), whose sum is σ = 2334269118720. Its totient is φ = 330906746880.

The previous prime is 1021322101117. The next prime is 1021322101157. The reversal of 1021322101122 is 2211012231201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1021322101095 and 1021322101104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92146593 + ... + 92157675.

It is an arithmetic number, because the mean of its divisors is an integer number (18236477490).

Almost surely, 2^{1021322101122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021322101122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167134559360).

1021322101122 is an abundant number, since it is smaller than the sum of its proper divisors (1312947017598).

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

1021322101122 is a wasteful number, since it uses less digits than its factorization.

1021322101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505 (or 11499 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1021322101122 its reverse (2211012231201), we get a palindrome (3232334332323).

The spelling of 1021322101122 in words is "one trillion, twenty-one billion, three hundred twenty-two million, one hundred one thousand, one hundred twenty-two".