215950222373 has 4 divisors (see below), whose sum is σ = 217380356448. Its totient is φ = 214520088300.

The previous prime is 215950222361. The next prime is 215950222379. The reversal of 215950222373 is 373222059512.

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 215950222373 - 2⁶ = 215950222309 is a prime.

It is a super-2 number, since 2×215950222373² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215950222373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215950222379) 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, 715066811 + ... + 715067112.

It is an arithmetic number, because the mean of its divisors is an integer number (54345089112).

Almost surely, 2^215950222373 is an apocalyptic number.

It is an amenable number.

215950222373 is a deficient number, since it is larger than the sum of its proper divisors (1430134075).

215950222373 is a wasteful number, since it uses less digits than its factorization.

215950222373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430134074.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 215950222373 in words is "two hundred fifteen billion, nine hundred fifty million, two hundred twenty-two thousand, three hundred seventy-three".