220221221112201 has 16 divisors (see below), whose sum is σ = 294306023922624. Its totient is φ = 146475584745984.

The previous prime is 220221221112181. The next prime is 220221221112209. The reversal of 220221221112201 is 102211122122022.

It is not a de Polignac number, because 220221221112201 - 2²⁶ = 220221154003337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220221221112209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34817280 + ... + 40653233.

It is an arithmetic number, because the mean of its divisors is an integer number (18394126495164).

Almost surely, 2^{220221221112201} is an apocalyptic number.

It is an amenable number.

220221221112201 is a deficient number, since it is larger than the sum of its proper divisors (74084802810423).

220221221112201 is a wasteful number, since it uses less digits than its factorization.

220221221112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75472760.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220221221112201 its reverse (102211122122022), we get a palindrome (322432343234223).

The spelling of 220221221112201 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred one".