101025622405 has 4 divisors (see below), whose sum is σ = 121230746892. Its totient is φ = 80820497920.

The previous prime is 101025622403. The next prime is 101025622459. The reversal of 101025622405 is 504226520101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20095614081 + 80930008324 = 141759^2 + 284482^2 .

It is not a de Polignac number, because 101025622405 - 2¹ = 101025622403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101025622403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10102562236 + ... + 10102562245.

It is an arithmetic number, because the mean of its divisors is an integer number (30307686723).

Almost surely, 2^101025622405 is an apocalyptic number.

It is an amenable number.

101025622405 is a deficient number, since it is larger than the sum of its proper divisors (20205124487).

101025622405 is an equidigital number, since it uses as much as digits as its factorization.

101025622405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20205124486.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 101025622405 in words is "one hundred one billion, twenty-five million, six hundred twenty-two thousand, four hundred five".