121022121102221 has 8 divisors (see below), whose sum is σ = 121141450584000. Its totient is φ = 120902799166240.

The previous prime is 121022121102151. The next prime is 121022121102251. The reversal of 121022121102221 is 122201121220121.

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 121022121102221 - 2²² = 121022116907917 is a prime.

It is a super-2 number, since 2×121022121102221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121022121102193 and 121022121102202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022121102251) 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, 30479606 + ... + 34220616.

It is an arithmetic number, because the mean of its divisors is an integer number (15142681323000).

Almost surely, 2^{121022121102221} is an apocalyptic number.

It is an amenable number.

121022121102221 is a deficient number, since it is larger than the sum of its proper divisors (119329481779).

121022121102221 is a wasteful number, since it uses less digits than its factorization.

121022121102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772899.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121022121102221 its reverse (122201121220121), we get a palindrome (243223242322342).

The spelling of 121022121102221 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty-one".