211225521315 has 16 divisors (see below), whose sum is σ = 338331833856. Its totient is φ = 112529944800.

The previous prime is 211225521263. The next prime is 211225521341. The reversal of 211225521315 is 513125522112.

It is not a de Polignac number, because 211225521315 - 2¹² = 211225517219 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7715041 + ... + 7742370.

It is an arithmetic number, because the mean of its divisors is an integer number (21145739616).

Almost surely, 2^211225521315 is an apocalyptic number.

211225521315 is a deficient number, since it is larger than the sum of its proper divisors (127106312541).

211225521315 is a wasteful number, since it uses less digits than its factorization.

211225521315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15458330.

The product of its digits is 6000, while the sum is 30.

The spelling of 211225521315 in words is "two hundred eleven billion, two hundred twenty-five million, five hundred twenty-one thousand, three hundred fifteen".