20102220212012 has 12 divisors (see below), whose sum is σ = 35191880914680. Its totient is φ = 10047397093536.

The previous prime is 20102220211951. The next prime is 20102220212117. The reversal of 20102220212012 is 21021202220102.

It is a happy 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, 928240937 + ... + 928262592.

It is an arithmetic number, because the mean of its divisors is an integer number (2932656742890).

Almost surely, 2^{20102220212012} is an apocalyptic number.

It is an amenable number.

20102220212012 is a deficient number, since it is larger than the sum of its proper divisors (15089660702668).

20102220212012 is a wasteful number, since it uses less digits than its factorization.

20102220212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856506240 (or 1856506238 counting only the distinct ones).

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

Adding to 20102220212012 its reverse (21021202220102), we get a palindrome (41123422432114).

The spelling of 20102220212012 in words is "twenty trillion, one hundred two billion, two hundred twenty million, two hundred twelve thousand, twelve".