1212120000022 has 16 divisors (see below), whose sum is σ = 1877110365312. Its totient is φ = 586422365760.

The previous prime is 1212120000001. The next prime is 1212120000023. The reversal of 1212120000022 is 2200000212121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212119999957 and 1212120000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212120000023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034383 + ... + 1869274.

It is an arithmetic number, because the mean of its divisors is an integer number (117319397832).

Almost surely, 2^{1212120000022} is an apocalyptic number.

1212120000022 is a deficient number, since it is larger than the sum of its proper divisors (664990365290).

1212120000022 is a wasteful number, since it uses less digits than its factorization.

1212120000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910423.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1212120000022 its reverse (2200000212121), we get a palindrome (3412120212143).

The spelling of 1212120000022 in words is "one trillion, two hundred twelve billion, one hundred twenty million, twenty-two", and thus it is an aban number.