210425510101 has 2 divisors, whose sum is σ = 210425510102. Its totient is φ = 210425510100.

The previous prime is 210425510011. The next prime is 210425510137. The reversal of 210425510101 is 101015524012.

Together with previous prime (210425510011) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206506624900 + 3918885201 = 454430^2 + 62601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210425510101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210425510201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105212755050 + 105212755051.

It is an arithmetic number, because the mean of its divisors is an integer number (105212755051).

Almost surely, 2^210425510101 is an apocalyptic number.

It is an amenable number.

210425510101 is a deficient number, since it is larger than the sum of its proper divisors (1).

210425510101 is an equidigital number, since it uses as much as digits as its factorization.

210425510101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 210425510101 in words is "two hundred ten billion, four hundred twenty-five million, five hundred ten thousand, one hundred one".