20200000012221 has 32 divisors (see below), whose sum is σ = 27246575748096. Its totient is φ = 13311815352000.

The previous prime is 20200000012193. The next prime is 20200000012243. The reversal of 20200000012221 is 12221000000202.

It is a de Polignac number, because none of the positive numbers 2^k-20200000012221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20200000012197 and 20200000012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200000012261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2043081940 + ... + 2043091826.

It is an arithmetic number, because the mean of its divisors is an integer number (851455492128).

Almost surely, 2^{20200000012221} is an apocalyptic number.

It is an amenable number.

20200000012221 is a deficient number, since it is larger than the sum of its proper divisors (7046575735875).

20200000012221 is an frugal number, since it uses more digits than its factorization.

20200000012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10854 (or 10652 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20200000012221 its reverse (12221000000202), we get a palindrome (32421000012423).

The spelling of 20200000012221 in words is "twenty trillion, two hundred billion, twelve thousand, two hundred twenty-one".