1102110000021 has 24 divisors (see below), whose sum is σ = 1602412194240. Its totient is φ = 729919515456.

The previous prime is 1102109999981. The next prime is 1102110000029. The reversal of 1102110000021 is 1200000112011.

It is a happy number.

It is not a de Polignac number, because 1102110000021 - 2⁶ = 1102109999957 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1102109999958 and 1102110000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102110000029) 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, 321990 + ... + 1519176.

It is an arithmetic number, because the mean of its divisors is an integer number (66767174760).

Almost surely, 2^{1102110000021} is an apocalyptic number.

It is an amenable number.

1102110000021 is a deficient number, since it is larger than the sum of its proper divisors (500302194219).

1102110000021 is a wasteful number, since it uses less digits than its factorization.

1102110000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197865 (or 1197862 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1102110000021 its reverse (1200000112011), we get a palindrome (2302110112032).

The spelling of 1102110000021 in words is "one trillion, one hundred two billion, one hundred ten million, twenty-one", and thus it is an aban number.