220251542245 has 32 divisors (see below), whose sum is σ = 310562265600. Its totient is φ = 146787054336.

The previous prime is 220251542209. The next prime is 220251542249. The reversal of 220251542245 is 542245152022.

It is a cyclic number.

It is not a de Polignac number, because 220251542245 - 2¹⁵ = 220251509477 is a prime.

It is a super-2 number, since 2×220251542245² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220251542245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220251542249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1097571 + ... + 1282639.

It is an arithmetic number, because the mean of its divisors is an integer number (9705070800).

Almost surely, 2^220251542245 is an apocalyptic number.

It is an amenable number.

220251542245 is a deficient number, since it is larger than the sum of its proper divisors (90310723355).

220251542245 is a wasteful number, since it uses less digits than its factorization.

220251542245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186037.

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 220251542245 its reverse (542245152022), we get a palindrome (762496694267).

The spelling of 220251542245 in words is "two hundred twenty billion, two hundred fifty-one million, five hundred forty-two thousand, two hundred forty-five".