22022100122212 has 6 divisors (see below), whose sum is σ = 38538675213878. Its totient is φ = 11011050061104.

The previous prime is 22022100122179. The next prime is 22022100122227. The reversal of 22022100122212 is 21222100122022.

It can be written as a sum of positive squares in only one way, i.e., 21839321641536 + 182778480676 = 4673256^2 + 427526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22022100122212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752762515273 + ... + 2752762515280.

Almost surely, 2^{22022100122212} is an apocalyptic number.

It is an amenable number.

22022100122212 is a deficient number, since it is larger than the sum of its proper divisors (16516575091666).

22022100122212 is a wasteful number, since it uses less digits than its factorization.

22022100122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505525030557 (or 5505525030555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22022100122212 its reverse (21222100122022), we get a palindrome (43244200244234).

The spelling of 22022100122212 in words is "twenty-two trillion, twenty-two billion, one hundred million, one hundred twenty-two thousand, two hundred twelve".