20002012202091 has 16 divisors (see below), whose sum is σ = 26740155657600. Its totient is φ = 13299288813888.

The previous prime is 20002012202059. The next prime is 20002012202111. The reversal of 20002012202091 is 19020221020002.

It is a happy number.

It is not a de Polignac number, because 20002012202091 - 2⁵ = 20002012202059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002012202891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2572015 + ... + 6827831.

It is an arithmetic number, because the mean of its divisors is an integer number (1671259728600).

Almost surely, 2^{20002012202091} is an apocalyptic number.

20002012202091 is a deficient number, since it is larger than the sum of its proper divisors (6738143455509).

20002012202091 is a wasteful number, since it uses less digits than its factorization.

20002012202091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259978.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20002012202091 its reverse (19020221020002), we get a palindrome (39022233222093).

The spelling of 20002012202091 in words is "twenty trillion, two billion, twelve million, two hundred two thousand, ninety-one".