220210201121 has 4 divisors (see below), whose sum is σ = 222390500244. Its totient is φ = 218029902000.

The previous prime is 220210201111. The next prime is 220210201129. The reversal of 220210201121 is 121102012022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114828810496 + 105381390625 = 338864^2 + 324625^2 .

It is a cyclic number.

It is not a de Polignac number, because 220210201121 - 2¹⁰ = 220210200097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220210201096 and 220210201105.

It is not an unprimeable number, because it can be changed into a prime (220210201129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1090149410 + ... + 1090149611.

It is an arithmetic number, because the mean of its divisors is an integer number (55597625061).

Almost surely, 2^220210201121 is an apocalyptic number.

It is an amenable number.

220210201121 is a deficient number, since it is larger than the sum of its proper divisors (2180299123).

220210201121 is a wasteful number, since it uses less digits than its factorization.

220210201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180299122.

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

Adding to 220210201121 its reverse (121102012022), we get a palindrome (341312213143).

The spelling of 220210201121 in words is "two hundred twenty billion, two hundred ten million, two hundred one thousand, one hundred twenty-one".