22001102212 has 24 divisors (see below), whose sum is σ = 40544713440. Its totient is φ = 10417366080.

The previous prime is 22001102197. The next prime is 22001102251. The reversal of 22001102212 is 21220110022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22001102192 and 22001102201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135168 + ... + 249544.

It is an arithmetic number, because the mean of its divisors is an integer number (1689363060).

Almost surely, 2^22001102212 is an apocalyptic number.

It is an amenable number.

22001102212 is a deficient number, since it is larger than the sum of its proper divisors (18543611228).

22001102212 is a wasteful number, since it uses less digits than its factorization.

22001102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116931 (or 116929 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22001102212 its reverse (21220110022), we get a palindrome (43221212234).

The spelling of 22001102212 in words is "twenty-two billion, one million, one hundred two thousand, two hundred twelve".