18012110102021 has 8 divisors (see below), whose sum is σ = 21480280370304. Its totient is φ = 14767692754320.

The previous prime is 18012110101969. The next prime is 18012110102057. The reversal of 18012110102021 is 12020101121081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18012110102021 - 2³⁴ = 17994930232837 is a prime.

It is a super-2 number, since 2×18012110102021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18012110101984 and 18012110102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18012110102081) 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 7 ways as a sum of consecutive naturals, for example, 55938229970 + ... + 55938230291.

It is an arithmetic number, because the mean of its divisors is an integer number (2685035046288).

Almost surely, 2^{18012110102021} is an apocalyptic number.

It is an amenable number.

18012110102021 is a deficient number, since it is larger than the sum of its proper divisors (3468170268283).

18012110102021 is a wasteful number, since it uses less digits than its factorization.

18012110102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111876460291.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 18012110102021 in words is "eighteen trillion, twelve billion, one hundred ten million, one hundred two thousand, twenty-one".