1212210033 has 32 divisors (see below), whose sum is σ = 1677836160. Its totient is φ = 778014720.

The previous prime is 1212210023. The next prime is 1212210091. The reversal of 1212210033 is 3300122121.

It is not a de Polignac number, because 1212210033 - 2⁵ = 1212210001 is a prime.

It is a super-2 number, since 2×1212210033² = 2938906328211722178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212209994 and 1212210021.

It is not an unprimeable number, because it can be changed into a prime (1212210023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4506223 + ... + 4506491.

It is an arithmetic number, because the mean of its divisors is an integer number (52432380).

Almost surely, 2^1212210033 is an apocalyptic number.

It is an amenable number.

1212210033 is a deficient number, since it is larger than the sum of its proper divisors (465626127).

1212210033 is a wasteful number, since it uses less digits than its factorization.

1212210033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1212210033 is about 34816.8067605287. The cubic root of 1212210033 is about 1066.2506069511.

Adding to 1212210033 its reverse (3300122121), we get a palindrome (4512332154).

It can be divided in two parts, 12122 and 10033, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 1212210033 in words is "one billion, two hundred twelve million, two hundred ten thousand, thirty-three".