120211121222221 has 8 divisors (see below), whose sum is σ = 126543234225600. Its totient is φ = 113879529407520.

The previous prime is 120211121222191. The next prime is 120211121222239. The reversal of 120211121222221 is 122222121112021.

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 120211121222221 - 2¹¹ = 120211121220173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120211121222192 and 120211121222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211121220221) 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, 129823681 + ... + 130746358.

It is an arithmetic number, because the mean of its divisors is an integer number (15817904278200).

Almost surely, 2^{120211121222221} is an apocalyptic number.

It is an amenable number.

120211121222221 is a deficient number, since it is larger than the sum of its proper divisors (6332113003379).

120211121222221 is a wasteful number, since it uses less digits than its factorization.

120211121222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260594339.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 120211121222221 its reverse (122222121112021), we get a palindrome (242433242334242).

The spelling of 120211121222221 in words is "one hundred twenty trillion, two hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-one".