1222221102011 has 16 divisors (see below), whose sum is σ = 1517584281024. Its totient is φ = 958474266624.

The previous prime is 1222221102007. The next prime is 1222221102029. The reversal of 1222221102011 is 1102011222221.

It is not a de Polignac number, because 1222221102011 - 2² = 1222221102007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222221102211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 59418926 + ... + 59439491.

It is an arithmetic number, because the mean of its divisors is an integer number (94849017564).

Almost surely, 2^{1222221102011} is an apocalyptic number.

1222221102011 is a deficient number, since it is larger than the sum of its proper divisors (295363179013).

1222221102011 is a wasteful number, since it uses less digits than its factorization.

1222221102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118858550.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222221102011 its reverse (1102011222221), we get a palindrome (2324232324232).

The spelling of 1222221102011 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred two thousand, eleven".