31222101442 has 16 divisors (see below), whose sum is σ = 53526557952. Its totient is φ = 13380161760.

The previous prime is 31222101437. The next prime is 31222101461. The reversal of 31222101442 is 24410122213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258342 + ... + 359422.

It is an arithmetic number, because the mean of its divisors is an integer number (3345409872).

Almost surely, 2^31222101442 is an apocalyptic number.

31222101442 is a deficient number, since it is larger than the sum of its proper divisors (22304456510).

31222101442 is a wasteful number, since it uses less digits than its factorization.

31222101442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123153.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31222101442 its reverse (24410122213), we get a palindrome (55632223655).

The spelling of 31222101442 in words is "thirty-one billion, two hundred twenty-two million, one hundred one thousand, four hundred forty-two".