1222011101001 has 16 divisors (see below), whose sum is σ = 1654549459200. Its totient is φ = 802150005888.

The previous prime is 1222011100951. The next prime is 1222011101033. The reversal of 1222011101001 is 1001011102221.

It is not a de Polignac number, because 1222011101001 - 2²⁷ = 1221876883273 is a prime.

It is a super-2 number, since 2×1222011101001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222011101501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9511126 + ... + 9638751.

It is an arithmetic number, because the mean of its divisors is an integer number (103409341200).

Almost surely, 2^{1222011101001} is an apocalyptic number.

It is an amenable number.

1222011101001 is a deficient number, since it is larger than the sum of its proper divisors (432538358199).

1222011101001 is a wasteful number, since it uses less digits than its factorization.

1222011101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150208.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1222011101001 its reverse (1001011102221), we get a palindrome (2223022203222).

The spelling of 1222011101001 in words is "one trillion, two hundred twenty-two billion, eleven million, one hundred one thousand, one".