220242051 has 8 divisors (see below), whose sum is σ = 326284560. Its totient is φ = 146828016.

The previous prime is 220242049. The next prime is 220242131. The reversal of 220242051 is 150242022.

It is not a de Polignac number, because 220242051 - 2¹ = 220242049 is a prime.

It is a super-2 number, since 2×220242051² = 97013122057373202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220242031) 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, 4078530 + ... + 4078583.

It is an arithmetic number, because the mean of its divisors is an integer number (40785570).

Almost surely, 2^220242051 is an apocalyptic number.

220242051 is a deficient number, since it is larger than the sum of its proper divisors (106042509).

220242051 is an equidigital number, since it uses as much as digits as its factorization.

220242051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157122 (or 8157116 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 220242051 is about 14840.5542686249. The cubic root of 220242051 is about 603.9023889087.

Adding to 220242051 its reverse (150242022), we get a palindrome (370484073).

It can be divided in two parts, 2202 and 42051, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 220242051 in words is "two hundred twenty million, two hundred forty-two thousand, fifty-one".