1222100121202 has 16 divisors (see below), whose sum is σ = 1834552503000. Its totient is φ = 610582717440.

The previous prime is 1222100121149. The next prime is 1222100121211. The reversal of 1222100121202 is 2021210012221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 985768993881 + 236331127321 = 992859^2 + 486139^2 .

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 7 ways as a sum of consecutive naturals, for example, 33778002 + ... + 33814162.

Almost surely, 2^{1222100121202} is an apocalyptic number.

1222100121202 is a deficient number, since it is larger than the sum of its proper divisors (612452381798).

1222100121202 is a wasteful number, since it uses less digits than its factorization.

1222100121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48621.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222100121202 its reverse (2021210012221), we get a palindrome (3243310133423).

The spelling of 1222100121202 in words is "one trillion, two hundred twenty-two billion, one hundred million, one hundred twenty-one thousand, two hundred two".