1222000000001 has 16 divisors (see below), whose sum is σ = 1346478130368. Its totient is φ = 1099756152000.

The previous prime is 1221999999977. The next prime is 1222000000003. The reversal of 1222000000001 is 1000000002221.

It is a de Polignac number, because none of the positive numbers 2^k-1222000000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222000000003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8278226 + ... + 8424548.

It is an arithmetic number, because the mean of its divisors is an integer number (84154883148).

Almost surely, 2^{1222000000001} is an apocalyptic number.

1222000000001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222000000001 is a deficient number, since it is larger than the sum of its proper divisors (124478130367).

1222000000001 is a wasteful number, since it uses less digits than its factorization.

1222000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153952.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 1222000000001 its reverse (1000000002221), we get a palindrome (2222000002222).

The spelling of 1222000000001 in words is "one trillion, two hundred twenty-two billion, one", and thus it is an aban number.