22100002021212 has 48 divisors (see below), whose sum is σ = 52998808450560. Its totient is φ = 7164859882752.

The previous prime is 22100002021193. The next prime is 22100002021241. The reversal of 22100002021212 is 21212020000122.

It is a junction number, because it is equal to n+sod(n) for n = 22100002021191 and 22100002021200.

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, 173908413 + ... + 174035444.

It is an arithmetic number, because the mean of its divisors is an integer number (1104141842720).

Almost surely, 2^{22100002021212} is an apocalyptic number.

It is an amenable number.

22100002021212 is an abundant number, since it is smaller than the sum of its proper divisors (30898806429348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22100002021212 is a wasteful number, since it uses less digits than its factorization.

22100002021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347944010 (or 347944008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22100002021212 its reverse (21212020000122), we get a palindrome (43312022021334).

The spelling of 22100002021212 in words is "twenty-two trillion, one hundred billion, two million, twenty-one thousand, two hundred twelve".