1222011021001 has 16 divisors (see below), whose sum is σ = 1306142184960. Its totient is φ = 1141306479040.

The previous prime is 1222011020987. The next prime is 1222011021017. The reversal of 1222011021001 is 1001201102221.

It is a cyclic number.

It is not a de Polignac number, because 1222011021001 - 2⁵ = 1222011020969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222011021061) 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, 5489905 + ... + 5708158.

It is an arithmetic number, because the mean of its divisors is an integer number (81633886560).

Almost surely, 2^{1222011021001} is an apocalyptic number.

It is an amenable number.

1222011021001 is a deficient number, since it is larger than the sum of its proper divisors (84131163959).

1222011021001 is a wasteful number, since it uses less digits than its factorization.

1222011021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198216.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1222011021001 its reverse (1001201102221), we get a palindrome (2223212123222).

The spelling of 1222011021001 in words is "one trillion, two hundred twenty-two billion, eleven million, twenty-one thousand, one".