1212121022233 has 8 divisors (see below), whose sum is σ = 1322413223040. Its totient is φ = 1101845384880.

The previous prime is 1212121022219. The next prime is 1212121022239. The reversal of 1212121022233 is 3322201212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212121022233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212121022239) 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, 3987598 + ... + 4280791.

It is an arithmetic number, because the mean of its divisors is an integer number (165301652880).

Almost surely, 2^{1212121022233} is an apocalyptic number.

It is an amenable number.

1212121022233 is a deficient number, since it is larger than the sum of its proper divisors (110292200807).

1212121022233 is a wasteful number, since it uses less digits than its factorization.

1212121022233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8281727.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1212121022233 its reverse (3322201212121), we get a palindrome (4534322234354).

The spelling of 1212121022233 in words is "one trillion, two hundred twelve billion, one hundred twenty-one million, twenty-two thousand, two hundred thirty-three".