10021210031 has 8 divisors (see below), whose sum is σ = 12126506400. Its totient is φ = 8084337408.

The previous prime is 10021210027. The next prime is 10021210039. The reversal of 10021210031 is 13001212001.

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

It is not a de Polignac number, because 10021210031 - 2² = 10021210027 is a prime.

It is a super-2 number, since 2×10021210031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021209994 and 10021210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021210039) 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, 42105806 + ... + 42106043.

It is an arithmetic number, because the mean of its divisors is an integer number (1515813300).

Almost surely, 2^10021210031 is an apocalyptic number.

10021210031 is a deficient number, since it is larger than the sum of its proper divisors (2105296369).

10021210031 is an equidigital number, since it uses as much as digits as its factorization.

10021210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84211873.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10021210031 its reverse (13001212001), we get a palindrome (23022422032).

The spelling of 10021210031 in words is "ten billion, twenty-one million, two hundred ten thousand, thirty-one".