1222212101011 has 16 divisors (see below), whose sum is σ = 1368597734496. Its totient is φ = 1082066400000.

The previous prime is 1222212101003. The next prime is 1222212101051. The reversal of 1222212101011 is 1101012122221.

It is a cyclic number.

It is not a de Polignac number, because 1222212101011 - 2³ = 1222212101003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222212101051) 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 15 ways as a sum of consecutive naturals, for example, 8949450 + ... + 9084991.

It is an arithmetic number, because the mean of its divisors is an integer number (85537358406).

Almost surely, 2^{1222212101011} is an apocalyptic number.

1222212101011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222212101011 is a deficient number, since it is larger than the sum of its proper divisors (146385633485).

1222212101011 is a wasteful number, since it uses less digits than its factorization.

1222212101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18034614.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222212101011 its reverse (1101012122221), we get a palindrome (2323224223232).

It can be divided in two parts, 122221210 and 1011, that added together give a palindrome (122222221).

The spelling of 1222212101011 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, one hundred one thousand, eleven".