220221011121001 has 16 divisors (see below), whose sum is σ = 242604709921728. Its totient is φ = 198237935001600.

The previous prime is 220221011120899. The next prime is 220221011121061. The reversal of 220221011121001 is 100121110122022.

It is a cyclic number.

It is not a de Polignac number, because 220221011121001 - 2⁹ = 220221011120489 is a prime.

It is a super-2 number, since 2×220221011121001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220221011121061) 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, 166546200 + ... + 167863273.

It is an arithmetic number, because the mean of its divisors is an integer number (15162794370108).

Almost surely, 2^{220221011121001} is an apocalyptic number.

It is an amenable number.

220221011121001 is a deficient number, since it is larger than the sum of its proper divisors (22383698800727).

220221011121001 is a wasteful number, since it uses less digits than its factorization.

220221011121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334410072.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220221011121001 its reverse (100121110122022), we get a palindrome (320342121243023).

The spelling of 220221011121001 in words is "two hundred twenty trillion, two hundred twenty-one billion, eleven million, one hundred twenty-one thousand, one".