20202102101212 has 24 divisors (see below), whose sum is σ = 35784197103200. Its totient is φ = 9978525340416.

The previous prime is 20202102101173. The next prime is 20202102101213. The reversal of 20202102101212 is 21210120120202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202102101213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59775537 + ... + 60112552.

Almost surely, 2^{20202102101212} is an apocalyptic number.

It is an amenable number.

20202102101212 is a deficient number, since it is larger than the sum of its proper divisors (15582095001988).

20202102101212 is a wasteful number, since it uses less digits than its factorization.

20202102101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119888605 (or 119888603 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20202102101212 its reverse (21210120120202), we get a palindrome (41412222221414).

The spelling of 20202102101212 in words is "twenty trillion, two hundred two billion, one hundred two million, one hundred one thousand, two hundred twelve".