1212222022 has 32 divisors (see below), whose sum is σ = 2017954944. Its totient is φ = 541516800.

The previous prime is 1212222019. The next prime is 1212222023. The reversal of 1212222022 is 2202222121.

It is a junction number, because it is equal to n+sod(n) for n = 1212221987 and 1212222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212222023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944193 + ... + 945475.

It is an arithmetic number, because the mean of its divisors is an integer number (63061092).

Almost surely, 2^1212222022 is an apocalyptic number.

1212222022 is a deficient number, since it is larger than the sum of its proper divisors (805732922).

1212222022 is a wasteful number, since it uses less digits than its factorization.

1212222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1212222022 is about 34816.9789326989. The cubic root of 1212222022 is about 1066.2541220835.

Adding to 1212222022 its reverse (2202222121), we get a palindrome (3414444143).

Subtracting 1212222022 from its reverse (2202222121), we obtain a palindrome (990000099).

The spelling of 1212222022 in words is "one billion, two hundred twelve million, two hundred twenty-two thousand, twenty-two".