1020100112244 has 72 divisors (see below), whose sum is σ = 2596512941568. Its totient is φ = 337675514880.

The previous prime is 1020100112243. The next prime is 1020100112329. The reversal of 1020100112244 is 4422110010201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020100112243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3909844 + ... + 4162580.

It is an arithmetic number, because the mean of its divisors is an integer number (36062679744).

Almost surely, 2^{1020100112244} is an apocalyptic number.

It is an amenable number.

1020100112244 is an abundant number, since it is smaller than the sum of its proper divisors (1576412829324).

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

1020100112244 is a wasteful number, since it uses less digits than its factorization.

1020100112244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253525 (or 253520 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1020100112244 its reverse (4422110010201), we get a palindrome (5442210122445).

The spelling of 1020100112244 in words is "one trillion, twenty billion, one hundred million, one hundred twelve thousand, two hundred forty-four".