221022121323101 has 8 divisors (see below), whose sum is σ = 254007864889920. Its totient is φ = 188389166457888.

The previous prime is 221022121323071. The next prime is 221022121323137. The reversal of 221022121323101 is 101323121220122.

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 221022121323101 - 2³⁸ = 220747243416157 is a prime.

It is a super-2 number, since 2×221022121323101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022121323001) 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, 88197174056 + ... + 88197176561.

It is an arithmetic number, because the mean of its divisors is an integer number (31750983111240).

Almost surely, 2^{221022121323101} is an apocalyptic number.

It is an amenable number.

221022121323101 is a deficient number, since it is larger than the sum of its proper divisors (32985743566819).

221022121323101 is a wasteful number, since it uses less digits than its factorization.

221022121323101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176394350803.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 221022121323101 its reverse (101323121220122), we get a palindrome (322345242543223).

The spelling of 221022121323101 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred twenty-one million, three hundred twenty-three thousand, one hundred one".