1222120212121 has 8 divisors (see below), whose sum is σ = 1222759549440. Its totient is φ = 1221480972768.

The previous prime is 1222120212067. The next prime is 1222120212133. The reversal of 1222120212121 is 1212120212221.

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 1222120212121 - 2²⁵ = 1222086657689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222120210121) 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, 45372960 + ... + 45399886.

It is an arithmetic number, because the mean of its divisors is an integer number (152844943680).

Almost surely, 2^{1222120212121} is an apocalyptic number.

It is an amenable number.

1222120212121 is a deficient number, since it is larger than the sum of its proper divisors (639337319).

1222120212121 is a wasteful number, since it uses less digits than its factorization.

1222120212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48983.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222120212121 its reverse (1212120212221), we get a palindrome (2434240424342).

The spelling of 1222120212121 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-one".