220201210120221 has 128 divisors (see below), whose sum is σ = 383223590277120. Its totient is φ = 123478938777600.

The previous prime is 220201210120219. The next prime is 220201210120273. The reversal of 220201210120221 is 122021012102022.

It is a happy number.

220201210120221 is a `hidden beast` number, since 2 + 20 + 201 + 210 + 12 + 0 + 221 = 666.

It is not a de Polignac number, because 220201210120221 - 2¹ = 220201210120219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220201210120194 and 220201210120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201210120121) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 123507105 + ... + 125277321.

It is an arithmetic number, because the mean of its divisors is an integer number (2993934299040).

Almost surely, 2^{220201210120221} is an apocalyptic number.

It is an amenable number.

220201210120221 is a deficient number, since it is larger than the sum of its proper divisors (163022380156899).

220201210120221 is a wasteful number, since it uses less digits than its factorization.

220201210120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770672 (or 1770666 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220201210120221 its reverse (122021012102022), we get a palindrome (342222222222243).

The spelling of 220201210120221 in words is "two hundred twenty trillion, two hundred one billion, two hundred ten million, one hundred twenty thousand, two hundred twenty-one".