20120222011312 has 10 divisors (see below), whose sum is σ = 38982930146948. Its totient is φ = 10060111005648.

The previous prime is 20120222011247. The next prime is 20120222011321. The reversal of 20120222011312 is 21311022202102.

It is a super-2 number, since 2×20120222011312² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20120222011312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628756937838 + ... + 628756937869.

Almost surely, 2^{20120222011312} is an apocalyptic number.

It is an amenable number.

20120222011312 is a deficient number, since it is larger than the sum of its proper divisors (18862708135636).

20120222011312 is a wasteful number, since it uses less digits than its factorization.

20120222011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257513875715 (or 1257513875709 counting only the distinct ones).

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

Adding to 20120222011312 its reverse (21311022202102), we get a palindrome (41431244213414).

The spelling of 20120222011312 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-two million, eleven thousand, three hundred twelve".