20102202221212 has 24 divisors (see below), whose sum is σ = 35213921672832. Its totient is φ = 10041082776000.

The previous prime is 20102202221209. The next prime is 20102202221291. The reversal of 20102202221212 is 21212220220102.

It is a self number, because there is not a number n which added to its sum of digits gives 20102202221212.

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, 84646837 + ... + 84883987.

It is an arithmetic number, because the mean of its divisors is an integer number (1467246736368).

Almost surely, 2^{20102202221212} is an apocalyptic number.

It is an amenable number.

20102202221212 is a deficient number, since it is larger than the sum of its proper divisors (15111719451620).

20102202221212 is a wasteful number, since it uses less digits than its factorization.

20102202221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258189 (or 258187 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20102202221212 its reverse (21212220220102), we get a palindrome (41314422441314).

The spelling of 20102202221212 in words is "twenty trillion, one hundred two billion, two hundred two million, two hundred twenty-one thousand, two hundred twelve".