31120222101 has 8 divisors (see below), whose sum is σ = 41519265120. Its totient is φ = 20733996912.

The previous prime is 31120222093. The next prime is 31120222127. The reversal of 31120222101 is 10122202113.

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

It is not a de Polignac number, because 31120222101 - 2³ = 31120222093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120222501) 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, 3198790 + ... + 3208503.

It is an arithmetic number, because the mean of its divisors is an integer number (5189908140).

Almost surely, 2^31120222101 is an apocalyptic number.

It is an amenable number.

31120222101 is a deficient number, since it is larger than the sum of its proper divisors (10399043019).

31120222101 is a wasteful number, since it uses less digits than its factorization.

31120222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408915.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 31120222101 its reverse (10122202113), we get a palindrome (41242424214).

The spelling of 31120222101 in words is "thirty-one billion, one hundred twenty million, two hundred twenty-two thousand, one hundred one".