20122220202212 has 24 divisors (see below), whose sum is σ = 35296419271680. Its totient is φ = 10037530082880.

The previous prime is 20122220202163. The next prime is 20122220202223. The reversal of 20122220202212 is 21220202222102.

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, 90379853 + ... + 90602219.

It is an arithmetic number, because the mean of its divisors is an integer number (1470684136320).

Almost surely, 2^{20122220202212} is an apocalyptic number.

It is an amenable number.

20122220202212 is a deficient number, since it is larger than the sum of its proper divisors (15174199069468).

20122220202212 is a wasteful number, since it uses less digits than its factorization.

20122220202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275291 (or 275289 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20122220202212 its reverse (21220202222102), we get a palindrome (41342422424314).

The spelling of 20122220202212 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, two hundred two thousand, two hundred twelve".