221022121010101 has 8 divisors (see below), whose sum is σ = 224938666814400. Its totient is φ = 217111255477920.

The previous prime is 221022121009997. The next prime is 221022121010137. The reversal of 221022121010101 is 101010121220122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221022121010101 - 2⁴³ = 212226027987893 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 (221022121010161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1419989520 + ... + 1420145161.

It is an arithmetic number, because the mean of its divisors is an integer number (28117333351800).

Almost surely, 2^{221022121010101} is an apocalyptic number.

It is an amenable number.

221022121010101 is a deficient number, since it is larger than the sum of its proper divisors (3916545804299).

221022121010101 is a wasteful number, since it uses less digits than its factorization.

221022121010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840136059.

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

Adding to 221022121010101 its reverse (101010121220122), we get a palindrome (322032242230223).

The spelling of 221022121010101 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred twenty-one million, ten thousand, one hundred one".