1212212222022 has 8 divisors (see below), whose sum is σ = 2424424444056. Its totient is φ = 404070740672.

The previous prime is 1212212222017. The next prime is 1212212222027. The reversal of 1212212222022 is 2202222122121.

It is an interprime number because it is at equal distance from previous prime (1212212222017) and next prime (1212212222027).

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

1212212222022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212212222022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212212222027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101017685163 + ... + 101017685174.

It is an arithmetic number, because the mean of its divisors is an integer number (303053055507).

Almost surely, 2^{1212212222022} is an apocalyptic number.

1212212222022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212212222022 is a wasteful number, since it uses less digits than its factorization.

1212212222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202035370342.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1212212222022 its reverse (2202222122121), we get a palindrome (3414434344143).

Subtracting 1212212222022 from its reverse (2202222122121), we obtain a palindrome (990009900099).

The spelling of 1212212222022 in words is "one trillion, two hundred twelve billion, two hundred twelve million, two hundred twenty-two thousand, twenty-two".