22101220200212 has 6 divisors (see below), whose sum is σ = 38677135350378. Its totient is φ = 11050610100104.

The previous prime is 22101220200187. The next prime is 22101220200247. The reversal of 22101220200212 is 21200202210122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21987808861456 + 113411338756 = 4689116^2 + 336766^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2762652525023 + ... + 2762652525030.

It is an arithmetic number, because the mean of its divisors is an integer number (6446189225063).

Almost surely, 2^{22101220200212} is an apocalyptic number.

It is an amenable number.

22101220200212 is a deficient number, since it is larger than the sum of its proper divisors (16575915150166).

22101220200212 is a wasteful number, since it uses less digits than its factorization.

22101220200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525305050057 (or 5525305050055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22101220200212 its reverse (21200202210122), we get a palindrome (43301422410334).

The spelling of 22101220200212 in words is "twenty-two trillion, one hundred one billion, two hundred twenty million, two hundred thousand, two hundred twelve".