10221001031 has 4 divisors (see below), whose sum is σ = 10364958864. Its totient is φ = 10077043200.

The previous prime is 10221000983. The next prime is 10221001051. The reversal of 10221001031 is 13010012201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10221001031 - 2²⁶ = 10153892167 is a prime.

It is a super-2 number, since 2×10221001031² (a number of 21 digits) 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 (10221001051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71978810 + ... + 71978951.

It is an arithmetic number, because the mean of its divisors is an integer number (2591239716).

Almost surely, 2^10221001031 is an apocalyptic number.

10221001031 is a deficient number, since it is larger than the sum of its proper divisors (143957833).

10221001031 is an equidigital number, since it uses as much as digits as its factorization.

10221001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143957832.

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

Adding to 10221001031 its reverse (13010012201), we get a palindrome (23231013232).

The spelling of 10221001031 in words is "ten billion, two hundred twenty-one million, one thousand, thirty-one".