1022111213244 has 96 divisors (see below), whose sum is σ = 2608987449600. Its totient is φ = 308868403200.

The previous prime is 1022111213231. The next prime is 1022111213311. The reversal of 1022111213244 is 4423121112201.

It is a super-2 number, since 2×1022111213244² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141113487 + ... + 141120729.

It is an arithmetic number, because the mean of its divisors is an integer number (27176952600).

Almost surely, 2^{1022111213244} is an apocalyptic number.

It is an amenable number.

1022111213244 is an abundant number, since it is smaller than the sum of its proper divisors (1586876236356).

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

1022111213244 is a wasteful number, since it uses less digits than its factorization.

1022111213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10091 (or 10089 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1022111213244 its reverse (4423121112201), we get a palindrome (5445232325445).

The spelling of 1022111213244 in words is "one trillion, twenty-two billion, one hundred eleven million, two hundred thirteen thousand, two hundred forty-four".