20212213111312 has 10 divisors (see below), whose sum is σ = 39161162903198. Its totient is φ = 10106106555648.

The previous prime is 20212213111291. The next prime is 20212213111331. The reversal of 20212213111312 is 21311131221202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17163752983056 + 3048460128256 = 4142916^2 + 1745984^2 .

It is a super-2 number, since 2×20212213111312² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631631659713 + ... + 631631659744.

Almost surely, 2^{20212213111312} is an apocalyptic number.

It is an amenable number.

20212213111312 is a deficient number, since it is larger than the sum of its proper divisors (18948949791886).

20212213111312 is a wasteful number, since it uses less digits than its factorization.

20212213111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263263319465 (or 1263263319459 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 20212213111312 its reverse (21311131221202), we get a palindrome (41523344332514).

The spelling of 20212213111312 in words is "twenty trillion, two hundred twelve billion, two hundred thirteen million, one hundred eleven thousand, three hundred twelve".