31422227211 has 12 divisors (see below), whose sum is σ = 47068686392. Its totient is φ = 20948151312.

The previous prime is 31422227173. The next prime is 31422227231. The reversal of 31422227211 is 11272222413.

It is a happy number.

31422227211 is a `hidden beast` number, since 3 + 1 + 422 + 2 + 27 + 211 = 666.

It is not a de Polignac number, because 31422227211 - 2²⁷ = 31288009483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31422227231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64654546 + ... + 64655031.

Almost surely, 2^31422227211 is an apocalyptic number.

31422227211 is a deficient number, since it is larger than the sum of its proper divisors (15646459181).

31422227211 is an equidigital number, since it uses as much as digits as its factorization.

31422227211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129309592 (or 129309580 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

Adding to 31422227211 its reverse (11272222413), we get a palindrome (42694449624).

The spelling of 31422227211 in words is "thirty-one billion, four hundred twenty-two million, two hundred twenty-seven thousand, two hundred eleven".