106202112521 has 4 divisors (see below), whose sum is σ = 106318690944. Its totient is φ = 106085534100.

The previous prime is 106202112503. The next prime is 106202112557. The reversal of 106202112521 is 125211202601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106202112521 - 2¹⁰ = 106202111497 is a prime.

It is a super-2 number, since 2×106202112521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106202112571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58287845 + ... + 58289666.

It is an arithmetic number, because the mean of its divisors is an integer number (26579672736).

Almost surely, 2^106202112521 is an apocalyptic number.

It is an amenable number.

106202112521 is a deficient number, since it is larger than the sum of its proper divisors (116578423).

106202112521 is an equidigital number, since it uses as much as digits as its factorization.

106202112521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116578422.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 106202112521 in words is "one hundred six billion, two hundred two million, one hundred twelve thousand, five hundred twenty-one".