1212022233 has 6 divisors (see below), whose sum is σ = 1750698794. Its totient is φ = 808014816.

The previous prime is 1212022223. The next prime is 1212022243. The reversal of 1212022233 is 3322202121.

It is an interprime number because it is at equal distance from previous prime (1212022223) and next prime (1212022243).

It can be written as a sum of positive squares in only one way, i.e., 1008189504 + 203832729 = 31752^2 + 14277^2 .

It is not a de Polignac number, because 1212022233 - 2⁶ = 1212022169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212022223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67334560 + ... + 67334577.

Almost surely, 2^1212022233 is an apocalyptic number.

It is an amenable number.

1212022233 is a deficient number, since it is larger than the sum of its proper divisors (538676561).

1212022233 is a wasteful number, since it uses less digits than its factorization.

1212022233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134669143 (or 134669140 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1212022233 is about 34814.1096827134. The cubic root of 1212022233 is about 1066.1955416296.

Adding to 1212022233 its reverse (3322202121), we get a palindrome (4534224354).

The spelling of 1212022233 in words is "one billion, two hundred twelve million, twenty-two thousand, two hundred thirty-three".