22212011012 has 6 divisors (see below), whose sum is σ = 38871019278. Its totient is φ = 11106005504.

The previous prime is 22212010993. The next prime is 22212011057. The reversal of 22212011012 is 21011021222.

It can be written as a sum of positive squares in only one way, i.e., 21742682116 + 469328896 = 147454^2 + 21664^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776501373 + ... + 2776501380.

It is an arithmetic number, because the mean of its divisors is an integer number (6478503213).

Almost surely, 2^22212011012 is an apocalyptic number.

It is an amenable number.

22212011012 is a deficient number, since it is larger than the sum of its proper divisors (16659008266).

22212011012 is a wasteful number, since it uses less digits than its factorization.

22212011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553002757 (or 5553002755 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22212011012 its reverse (21011021222), we get a palindrome (43223032234).

The spelling of 22212011012 in words is "twenty-two billion, two hundred twelve million, eleven thousand, twelve".