22021010001212 has 24 divisors (see below), whose sum is σ = 40602689627136. Its totient is φ = 10429537024368.

The previous prime is 22021010001191. The next prime is 22021010001227. The reversal of 22021010001212 is 21210001012022.

It is a congruent number.

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, 1161926468 + ... + 1161945419.

It is an arithmetic number, because the mean of its divisors is an integer number (1691778734464).

Almost surely, 2^{22021010001212} is an apocalyptic number.

It is an amenable number.

22021010001212 is a deficient number, since it is larger than the sum of its proper divisors (18581679625924).

22021010001212 is a wasteful number, since it uses less digits than its factorization.

22021010001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323872017 (or 2323872015 counting only the distinct ones).

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

Adding to 22021010001212 its reverse (21210001012022), we get a palindrome (43231011013234).

The spelling of 22021010001212 in words is "twenty-two trillion, twenty-one billion, ten million, one thousand, two hundred twelve".