31012032222002 has 32 divisors (see below), whose sum is σ = 51104512509120. Its totient is φ = 14025868009920.

The previous prime is 31012032221981. The next prime is 31012032222011. The reversal of 31012032222002 is 20022223021013.

It is a happy number.

It is a super-2 number, since 2×31012032222002² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12757352 + ... + 14992467.

It is an arithmetic number, because the mean of its divisors is an integer number (1597016015910).

Almost surely, 2^{31012032222002} is an apocalyptic number.

31012032222002 is a deficient number, since it is larger than the sum of its proper divisors (20092480287118).

31012032222002 is a wasteful number, since it uses less digits than its factorization.

31012032222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27750698.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31012032222002 its reverse (20022223021013), we get a palindrome (51034255243015).

The spelling of 31012032222002 in words is "thirty-one trillion, twelve billion, thirty-two million, two hundred twenty-two thousand, two".