221096950 has 24 divisors (see below), whose sum is σ = 415489032. Its totient is φ = 87525120.

The previous prime is 221096933. The next prime is 221096959. The reversal of 221096950 is 59690122.

It is a super-2 number, since 2×221096950² = 97767722598605000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221096959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17944 + ... + 27643.

It is an arithmetic number, because the mean of its divisors is an integer number (17312043).

Almost surely, 2^221096950 is an apocalyptic number.

221096950 is a deficient number, since it is larger than the sum of its proper divisors (194392082).

221096950 is a wasteful number, since it uses less digits than its factorization.

221096950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45696 (or 45691 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 221096950 is about 14869.3291711496. The cubic root of 221096950 is about 604.6827560627.

The spelling of 221096950 in words is "two hundred twenty-one million, ninety-six thousand, nine hundred fifty".