101102120021 has 8 divisors (see below), whose sum is σ = 115565203584. Its totient is φ = 86644017360.

The previous prime is 101102120011. The next prime is 101102120033. The reversal of 101102120021 is 120021201101.

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 101102120021 - 2¹⁴ = 101102103637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101102119984 and 101102120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101102120011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201625 + ... + 1283006.

It is an arithmetic number, because the mean of its divisors is an integer number (14445650448).

Almost surely, 2^101102120021 is an apocalyptic number.

It is an amenable number.

101102120021 is a deficient number, since it is larger than the sum of its proper divisors (14463083563).

101102120021 is an equidigital number, since it uses as much as digits as its factorization.

101102120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490451.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101102120021 its reverse (120021201101), we get a palindrome (221123321122).

The spelling of 101102120021 in words is "one hundred one billion, one hundred two million, one hundred twenty thousand, twenty-one".