101020112112251 has 2 divisors, whose sum is σ = 101020112112252. Its totient is φ = 101020112112250.

The previous prime is 101020112112217. The next prime is 101020112112263. The reversal of 101020112112251 is 152211211020101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101020112112251 is a prime.

It is a super-2 number, since 2×101020112112251² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101020112112151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510056056125 + 50510056056126.

It is an arithmetic number, because the mean of its divisors is an integer number (50510056056126).

Almost surely, 2^{101020112112251} is an apocalyptic number.

101020112112251 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020112112251 is an equidigital number, since it uses as much as digits as its factorization.

101020112112251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 20.

Adding to 101020112112251 its reverse (152211211020101), we get a palindrome (253231323132352).

The spelling of 101020112112251 in words is "one hundred one trillion, twenty billion, one hundred twelve million, one hundred twelve thousand, two hundred fifty-one".