101112212501 has 2 divisors, whose sum is σ = 101112212502. Its totient is φ = 101112212500.

The previous prime is 101112212483. The next prime is 101112212507. The reversal of 101112212501 is 105212211101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92449443025 + 8662769476 = 304055^2 + 93074^2 .

It is a cyclic number.

It is not a de Polignac number, because 101112212501 - 2¹⁰ = 101112211477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101112212501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101112212507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50556106250 + 50556106251.

It is an arithmetic number, because the mean of its divisors is an integer number (50556106251).

Almost surely, 2^101112212501 is an apocalyptic number.

It is an amenable number.

101112212501 is a deficient number, since it is larger than the sum of its proper divisors (1).

101112212501 is an equidigital number, since it uses as much as digits as its factorization.

101112212501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 101112212501 its reverse (105212211101), we get a palindrome (206324423602).

The spelling of 101112212501 in words is "one hundred one billion, one hundred twelve million, two hundred twelve thousand, five hundred one".