220109933 has 2 divisors, whose sum is σ = 220109934. Its totient is φ = 220109932.

The previous prime is 220109893. The next prime is 220109957. The reversal of 220109933 is 339901022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168298729 + 51811204 = 12973^2 + 7198^2 .

It is a cyclic number.

It is not a de Polignac number, because 220109933 - 2²⁰ = 219061357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220109896 and 220109905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220109993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110054966 + 110054967.

It is an arithmetic number, because the mean of its divisors is an integer number (110054967).

Almost surely, 2^220109933 is an apocalyptic number.

It is an amenable number.

220109933 is a deficient number, since it is larger than the sum of its proper divisors (1).

220109933 is an equidigital number, since it uses as much as digits as its factorization.

220109933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 220109933 is about 14836.1023520330. The cubic root of 220109933 is about 603.7816091654.

The spelling of 220109933 in words is "two hundred twenty million, one hundred nine thousand, nine hundred thirty-three".