2102210031 has 16 divisors (see below), whose sum is σ = 2865558528. Its totient is φ = 1370229600.

The previous prime is 2102209979. The next prime is 2102210053. The reversal of 2102210031 is 1300122012.

It is not a de Polignac number, because 2102210031 - 2¹¹ = 2102207983 is a prime.

It is a super-2 number, since 2×2102210031² = 8838574028874041922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102209989 and 2102210016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102210431) 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, 138141 + ... + 152601.

It is an arithmetic number, because the mean of its divisors is an integer number (179097408).

Almost surely, 2^2102210031 is an apocalyptic number.

2102210031 is a deficient number, since it is larger than the sum of its proper divisors (763348497).

2102210031 is a wasteful number, since it uses less digits than its factorization.

2102210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15542.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2102210031 is about 45849.8640237896. The cubic root of 2102210031 is about 1281.0282328336.

Adding to 2102210031 its reverse (1300122012), we get a palindrome (3402332043).

The spelling of 2102210031 in words is "two billion, one hundred two million, two hundred ten thousand, thirty-one".