220221021220101 has 32 divisors (see below), whose sum is σ = 355915139558400. Its totient is φ = 133466393841840.

The previous prime is 220221021220097. The next prime is 220221021220157. The reversal of 220221021220101 is 101022120122022.

It is a happy number.

220221021220101 is a `hidden beast` number, since 2 + 202 + 210 + 21 + 220 + 10 + 1 = 666.

220221021220101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220221021220101 - 2² = 220221021220097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221021220301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43482810 + ... + 48282468.

It is an arithmetic number, because the mean of its divisors is an integer number (11122348111200).

Almost surely, 2^{220221021220101} is an apocalyptic number.

It is an amenable number.

220221021220101 is a deficient number, since it is larger than the sum of its proper divisors (135694118338299).

220221021220101 is a wasteful number, since it uses less digits than its factorization.

220221021220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954166 (or 4954160 counting only the distinct ones).

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

Adding to 220221021220101 its reverse (101022120122022), we get a palindrome (321243141342123).

The spelling of 220221021220101 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty-one million, two hundred twenty thousand, one hundred one".