31404411222 has 32 divisors (see below), whose sum is σ = 63853011072. Its totient is φ = 10294933824.

The previous prime is 31404411211. The next prime is 31404411239. The reversal of 31404411222 is 22211440413.

It is a junction number, because it is equal to n+sod(n) for n = 31404411192 and 31404411201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48673 + ... + 255299.

It is an arithmetic number, because the mean of its divisors is an integer number (1995406596).

Almost surely, 2^31404411222 is an apocalyptic number.

31404411222 is an abundant number, since it is smaller than the sum of its proper divisors (32448599850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31404411222 is a wasteful number, since it uses less digits than its factorization.

31404411222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207052.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31404411222 its reverse (22211440413), we get a palindrome (53615851635).

The spelling of 31404411222 in words is "thirty-one billion, four hundred four million, four hundred eleven thousand, two hundred twenty-two".