20112000102251 has 2 divisors, whose sum is σ = 20112000102252. Its totient is φ = 20112000102250.

The previous prime is 20112000102199. The next prime is 20112000102269. The reversal of 20112000102251 is 15220100021102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112000102251 - 2²² = 20111995907947 is a prime.

It is a super-2 number, since 2×20112000102251² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20112000102281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056000051125 + 10056000051126.

It is an arithmetic number, because the mean of its divisors is an integer number (10056000051126).

Almost surely, 2^{20112000102251} is an apocalyptic number.

20112000102251 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112000102251 is an equidigital number, since it uses as much as digits as its factorization.

20112000102251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 20112000102251 its reverse (15220100021102), we get a palindrome (35332100123353).

The spelling of 20112000102251 in words is "twenty trillion, one hundred twelve billion, one hundred two thousand, two hundred fifty-one".