1110100101021 has 12 divisors (see below), whose sum is σ = 1646815165372. Its totient is φ = 720064930176.

The previous prime is 1110100100969. The next prime is 1110100101037. The reversal of 1110100101021 is 1201010010111.

It can be written as a sum of positive squares in 2 ways, for example, as 883891424025 + 226208676996 = 940155^2 + 475614^2 .

It is not a de Polignac number, because 1110100101021 - 2²⁷ = 1109965883293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110100100994 and 1110100101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110100101221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1666816636 + ... + 1666817301.

Almost surely, 2^{1110100101021} is an apocalyptic number.

It is an amenable number.

1110100101021 is a deficient number, since it is larger than the sum of its proper divisors (536715064351).

1110100101021 is a wasteful number, since it uses less digits than its factorization.

1110100101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333633980 (or 3333633977 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1110100101021 its reverse (1201010010111), we get a palindrome (2311110111132).

It can be divided in two parts, 1110100 and 101021, that added together give a palindrome (1211121).

The spelling of 1110100101021 in words is "one trillion, one hundred ten billion, one hundred million, one hundred one thousand, twenty-one".