1222022100121 has 8 divisors (see below), whose sum is σ = 1245196463040. Its totient is φ = 1198852083312.

The previous prime is 1222022100119. The next prime is 1222022100149. The reversal of 1222022100121 is 1210012202221.

It is a happy number.

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 1222022100121 - 2¹ = 1222022100119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222022100095 and 1222022100104.

It is not an unprimeable number, because it can be changed into a prime (1222022100151) 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, 516031 + ... + 1646308.

It is an arithmetic number, because the mean of its divisors is an integer number (155649557880).

Almost surely, 2^{1222022100121} is an apocalyptic number.

It is an amenable number.

1222022100121 is a deficient number, since it is larger than the sum of its proper divisors (23174362919).

1222022100121 is a wasteful number, since it uses less digits than its factorization.

1222022100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173055.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222022100121 its reverse (1210012202221), we get a palindrome (2432034302342).

The spelling of 1222022100121 in words is "one trillion, two hundred twenty-two billion, twenty-two million, one hundred thousand, one hundred twenty-one".