1022204221012 has 12 divisors (see below), whose sum is σ = 1926461801236. Its totient is φ = 471786563520.

The previous prime is 1022204221007. The next prime is 1022204221019. The reversal of 1022204221012 is 2101224022201.

It can be written as a sum of positive squares in 2 ways, for example, as 43458073156 + 978746147856 = 208466^2 + 989316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022204221019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9828886689 + ... + 9828886792.

Almost surely, 2^{1022204221012} is an apocalyptic number.

It is an amenable number.

1022204221012 is a deficient number, since it is larger than the sum of its proper divisors (904257580224).

1022204221012 is a wasteful number, since it uses less digits than its factorization.

1022204221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19657773498 (or 19657773496 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1022204221012 its reverse (2101224022201), we get a palindrome (3123428243213).

The spelling of 1022204221012 in words is "one trillion, twenty-two billion, two hundred four million, two hundred twenty-one thousand, twelve".