221020222001101 has 16 divisors (see below), whose sum is σ = 222204915979200. Its totient is φ = 219838797763200.

The previous prime is 221020222001093. The next prime is 221020222001171. The reversal of 221020222001101 is 101100222020122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221020222001101 - 2³ = 221020222001093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020222001171) 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, 965634010 + ... + 965862868.

It is an arithmetic number, because the mean of its divisors is an integer number (13887807248700).

Almost surely, 2^{221020222001101} is an apocalyptic number.

It is an amenable number.

221020222001101 is a deficient number, since it is larger than the sum of its proper divisors (1184693978099).

221020222001101 is a wasteful number, since it uses less digits than its factorization.

221020222001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235980.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221020222001101 its reverse (101100222020122), we get a palindrome (322120444021223).

The spelling of 221020222001101 in words is "two hundred twenty-one trillion, twenty billion, two hundred twenty-two million, one thousand, one hundred one".