220233015550 has 24 divisors (see below), whose sum is σ = 410350858632. Its totient is φ = 87938916000.

The previous prime is 220233015487. The next prime is 220233015553. The reversal of 220233015550 is 55510332022.

It is a super-2 number, since 2×220233015550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220233015553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3828421 + ... + 3885520.

It is an arithmetic number, because the mean of its divisors is an integer number (17097952443).

Almost surely, 2^220233015550 is an apocalyptic number.

220233015550 is a deficient number, since it is larger than the sum of its proper divisors (190117843082).

220233015550 is a wasteful number, since it uses less digits than its factorization.

220233015550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714524 (or 7714519 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 220233015550 its reverse (55510332022), we get a palindrome (275743347572).

The spelling of 220233015550 in words is "two hundred twenty billion, two hundred thirty-three million, fifteen thousand, five hundred fifty".