1212211122022 has 16 divisors (see below), whose sum is σ = 1889452333440. Its totient is φ = 582581123712.

The previous prime is 1212211122019. The next prime is 1212211122053. The reversal of 1212211122022 is 2202211122121.

It is a congruent number.

It is an unprimeable number.

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, 46848483 + ... + 46874350.

It is an arithmetic number, because the mean of its divisors is an integer number (118090770840).

Almost surely, 2^{1212211122022} is an apocalyptic number.

1212211122022 is a deficient number, since it is larger than the sum of its proper divisors (677241211418).

1212211122022 is a wasteful number, since it uses less digits than its factorization.

1212211122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93723087.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1212211122022 its reverse (2202211122121), we get a palindrome (3414422244143).

Subtracting 1212211122022 from its reverse (2202211122121), we obtain a palindrome (990000000099).

The spelling of 1212211122022 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred twenty-two thousand, twenty-two".