220220421010 has 16 divisors (see below), whose sum is σ = 396420889176. Its totient is φ = 88082805888.

The previous prime is 220220420993. The next prime is 220220421013. The reversal of 220220421010 is 10124022022.

It can be written as a sum of positive squares in 4 ways, for example, as 80095226121 + 140125194889 = 283011^2 + 374333^2 .

It is not an unprimeable number, because it can be changed into a prime (220220421013) 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, 495669 + ... + 828328.

Almost surely, 2^220220421010 is an apocalyptic number.

220220421010 is a deficient number, since it is larger than the sum of its proper divisors (176200468166).

220220421010 is a wasteful number, since it uses less digits than its factorization.

220220421010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340637.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220220421010 its reverse (10124022022), we get a palindrome (230344443032).

The spelling of 220220421010 in words is "two hundred twenty billion, two hundred twenty million, four hundred twenty-one thousand, ten".