220101249 has 8 divisors (see below), whose sum is σ = 295090432. Its totient is φ = 145923120.

The previous prime is 220101229. The next prime is 220101293. The reversal of 220101249 is 942101022.

220101249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220101249 - 2⁷ = 220101121 is a prime.

It is a super-2 number, since 2×220101249² = 96889119622720002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220101229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202129 + ... + 203214.

It is an arithmetic number, because the mean of its divisors is an integer number (36886304).

Almost surely, 2^220101249 is an apocalyptic number.

It is an amenable number.

220101249 is a deficient number, since it is larger than the sum of its proper divisors (74989183).

220101249 is a wasteful number, since it uses less digits than its factorization.

220101249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405527.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 220101249 is about 14835.8096846785. The cubic root of 220101249 is about 603.7736687265.

The spelling of 220101249 in words is "two hundred twenty million, one hundred one thousand, two hundred forty-nine".