20100212201222 has 8 divisors (see below), whose sum is σ = 30443039839056. Its totient is φ = 9952532254872.

The previous prime is 20100212201171. The next prime is 20100212201231. The reversal of 20100212201222 is 22210221200102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20100212201222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48786922613 + ... + 48786923024.

It is an arithmetic number, because the mean of its divisors is an integer number (3805379979882).

Almost surely, 2^{20100212201222} is an apocalyptic number.

20100212201222 is a deficient number, since it is larger than the sum of its proper divisors (10342827637834).

20100212201222 is a wasteful number, since it uses less digits than its factorization.

20100212201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97573845742.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20100212201222 its reverse (22210221200102), we get a palindrome (42310433401324).

The spelling of 20100212201222 in words is "twenty trillion, one hundred billion, two hundred twelve million, two hundred one thousand, two hundred twenty-two".