20200221011212 has 24 divisors (see below), whose sum is σ = 38867712307200. Its totient is φ = 9109620066960.

The previous prime is 20200221011207. The next prime is 20200221011213. The reversal of 20200221011212 is 21211012200202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20200221011213) 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, 1807458712 + ... + 1807469887.

It is an arithmetic number, because the mean of its divisors is an integer number (1619488012800).

Almost surely, 2^{20200221011212} is an apocalyptic number.

20200221011212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20200221011212 is a deficient number, since it is larger than the sum of its proper divisors (18667491295988).

20200221011212 is a wasteful number, since it uses less digits than its factorization.

20200221011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614928741 (or 3614928739 counting only the distinct ones).

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

Adding to 20200221011212 its reverse (21211012200202), we get a palindrome (41411233211414).

The spelling of 20200221011212 in words is "twenty trillion, two hundred billion, two hundred twenty-one million, eleven thousand, two hundred twelve".