220121221202 has 8 divisors (see below), whose sum is σ = 341567412300. Its totient is φ = 106265417104.

The previous prime is 220121221127. The next prime is 220121221213. The reversal of 220121221202 is 202122121022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 197723404921 + 22397816281 = 444661^2 + 149659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897596677 + ... + 1897596792.

Almost surely, 2^220121221202 is an apocalyptic number.

220121221202 is a deficient number, since it is larger than the sum of its proper divisors (121446191098).

220121221202 is a wasteful number, since it uses less digits than its factorization.

220121221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795193500.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220121221202 its reverse (202122121022), we get a palindrome (422243342224).

The spelling of 220121221202 in words is "two hundred twenty billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred two".