1222012020222 has 24 divisors (see below), whose sum is σ = 3025934526576. Its totient is φ = 349146291456.

The previous prime is 1222012020199. The next prime is 1222012020253. The reversal of 1222012020222 is 2220202102221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222012020195 and 1222012020204.

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 11 ways as a sum of consecutive naturals, for example, 4849253923 + ... + 4849254174.

It is an arithmetic number, because the mean of its divisors is an integer number (126080605274).

Almost surely, 2^{1222012020222} is an apocalyptic number.

1222012020222 is an abundant number, since it is smaller than the sum of its proper divisors (1803922506354).

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

1222012020222 is a wasteful number, since it uses less digits than its factorization.

1222012020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9698508112 (or 9698508109 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1222012020222 its reverse (2220202102221), we get a palindrome (3442214122443).

The spelling of 1222012020222 in words is "one trillion, two hundred twenty-two billion, twelve million, twenty thousand, two hundred twenty-two".