221950 has 24 divisors (see below), whose sum is σ = 433008. Its totient is φ = 84480.

The previous prime is 221941. The next prime is 221951. The reversal of 221950 is 59122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221951) by changing a digit.

221950 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (18042).

2²²¹⁹⁵⁰ is an apocalyptic number.

221950 is a deficient number, since it is larger than the sum of its proper divisors (211058).

221950 is a wasteful number, since it uses less digits than its factorization.

221950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 221950 is about 471.1156970427. The cubic root of 221950 is about 60.5459432912.

It can be divided in two parts, 2 and 21950, that added together give a cube (21952 = 28³).

The spelling of 221950 in words is "two hundred twenty-one thousand, nine hundred fifty".