1102120110021 has 64 divisors (see below), whose sum is σ = 1772133728256. Its totient is φ = 596233747200.

The previous prime is 1102120110011. The next prime is 1102120110031. The reversal of 1102120110021 is 1200110212011.

It is an interprime number because it is at equal distance from previous prime (1102120110011) and next prime (1102120110031).

It is not a de Polignac number, because 1102120110021 - 2⁶ = 1102120109957 is a prime.

It is a super-2 number, since 2×1102120110021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1102120109979 and 1102120110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102120110011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3565711 + ... + 3862451.

It is an arithmetic number, because the mean of its divisors is an integer number (27689589504).

Almost surely, 2^{1102120110021} is an apocalyptic number.

It is an amenable number.

1102120110021 is a deficient number, since it is larger than the sum of its proper divisors (670013618235).

1102120110021 is a wasteful number, since it uses less digits than its factorization.

1102120110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296922.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1102120110021 its reverse (1200110212011), we get a palindrome (2302230322032).

The spelling of 1102120110021 in words is "one trillion, one hundred two billion, one hundred twenty million, one hundred ten thousand, twenty-one".