22101004212 has 48 divisors (see below), whose sum is σ = 62037911040. Its totient is φ = 5982226272.

The previous prime is 22101004153. The next prime is 22101004273. The reversal of 22101004212 is 21240010122.

It is a junction number, because it is equal to n+sod(n) for n = 22101004191 and 22101004200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6922278 + ... + 6925469.

It is an arithmetic number, because the mean of its divisors is an integer number (1292456480).

Almost surely, 2^22101004212 is an apocalyptic number.

It is an amenable number.

22101004212 is an abundant number, since it is smaller than the sum of its proper divisors (39936906828).

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

22101004212 is a wasteful number, since it uses less digits than its factorization.

22101004212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13847780 (or 13847778 counting only the distinct ones).

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

Adding to 22101004212 its reverse (21240010122), we get a palindrome (43341014334).

The spelling of 22101004212 in words is "twenty-two billion, one hundred one million, four thousand, two hundred twelve".