20112312001222 has 32 divisors (see below), whose sum is σ = 34502004532800. Its totient is φ = 8613624181248.

The previous prime is 20112312001219. The next prime is 20112312001241. The reversal of 20112312001222 is 22210021321102.

It is a self number, because there is not a number n which added to its sum of digits gives 20112312001222.

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, 594511804 + ... + 594545632.

It is an arithmetic number, because the mean of its divisors is an integer number (1078187641650).

Almost surely, 2^{20112312001222} is an apocalyptic number.

20112312001222 is a deficient number, since it is larger than the sum of its proper divisors (14389692531578).

20112312001222 is a wasteful number, since it uses less digits than its factorization.

20112312001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61840.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20112312001222 its reverse (22210021321102), we get a palindrome (42322333322324).

The spelling of 20112312001222 in words is "twenty trillion, one hundred twelve billion, three hundred twelve million, one thousand, two hundred twenty-two".