1212022220222 has 16 divisors (see below), whose sum is σ = 1984726800000. Its totient is φ = 550525382040.

The previous prime is 1212022220219. The next prime is 1212022220231. The reversal of 1212022220222 is 2220222202121.

It is a junction number, because it is equal to n+sod(n) for n = 1212022220194 and 1212022220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19658972 + ... + 19720527.

It is an arithmetic number, because the mean of its divisors is an integer number (124045425000).

Almost surely, 2^{1212022220222} is an apocalyptic number.

1212022220222 is a deficient number, since it is larger than the sum of its proper divisors (772704579778).

1212022220222 is a wasteful number, since it uses less digits than its factorization.

1212022220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39380911.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1212022220222 its reverse (2220222202121), we get a palindrome (3432244422343).

The spelling of 1212022220222 in words is "one trillion, two hundred twelve billion, twenty-two million, two hundred twenty thousand, two hundred twenty-two".