220203029 has 4 divisors (see below), whose sum is σ = 220235340. Its totient is φ = 220170720.

The previous prime is 220203017. The next prime is 220203031. The reversal of 220203029 is 920302022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127080529 + 93122500 = 11273^2 + 9650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220203029 is a prime.

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 220203029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220203059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502 + ... + 21039.

It is an arithmetic number, because the mean of its divisors is an integer number (55058835).

Almost surely, 2^220203029 is an apocalyptic number.

It is an amenable number.

220203029 is a deficient number, since it is larger than the sum of its proper divisors (32311).

220203029 is an equidigital number, since it uses as much as digits as its factorization.

220203029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32310.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 220203029 is about 14839.2395020769. The cubic root of 220203029 is about 603.8667207717.

The spelling of 220203029 in words is "two hundred twenty million, two hundred three thousand, twenty-nine".