2120102101 has 16 divisors (see below), whose sum is σ = 2374364160. Its totient is φ = 1879577280.

The previous prime is 2120102081. The next prime is 2120102107. The reversal of 2120102101 is 1012010212.

It is a cyclic number.

It is not a de Polignac number, because 2120102101 - 2¹¹ = 2120100053 is a prime.

It is a super-2 number, since 2×2120102101² = 8989665837329228402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120102107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57286 + ... + 86728.

It is an arithmetic number, because the mean of its divisors is an integer number (148397760).

Almost surely, 2^2120102101 is an apocalyptic number.

It is an amenable number.

2120102101 is a deficient number, since it is larger than the sum of its proper divisors (254262059).

2120102101 is a wasteful number, since it uses less digits than its factorization.

2120102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29676.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2120102101 is about 46044.5664655451. The cubic root of 2120102101 is about 1284.6522803652.

Adding to 2120102101 its reverse (1012010212), we get a palindrome (3132112313).

The spelling of 2120102101 in words is "two billion, one hundred twenty million, one hundred two thousand, one hundred one".