220021121210 has 32 divisors (see below), whose sum is σ = 442579080384. Its totient is φ = 78056272000.

The previous prime is 220021121207. The next prime is 220021121263. The reversal of 220021121210 is 12121120022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24388076 + ... + 24397095.

It is an arithmetic number, because the mean of its divisors is an integer number (13830596262).

Almost surely, 2^220021121210 is an apocalyptic number.

220021121210 is an abundant number, since it is smaller than the sum of its proper divisors (222557959174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220021121210 is a wasteful number, since it uses less digits than its factorization.

220021121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48785230.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220021121210 its reverse (12121120022), we get a palindrome (232142241232).

The spelling of 220021121210 in words is "two hundred twenty billion, twenty-one million, one hundred twenty-one thousand, two hundred ten".