1222001002101 has 32 divisors (see below), whose sum is σ = 1782689458176. Its totient is φ = 738426960000.

The previous prime is 1222001002099. The next prime is 1222001002133. The reversal of 1222001002101 is 1012001002221.

It is not a de Polignac number, because 1222001002101 - 2¹ = 1222001002099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222001002501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78120241 + ... + 78135881.

It is an arithmetic number, because the mean of its divisors is an integer number (55709045568).

Almost surely, 2^{1222001002101} is an apocalyptic number.

1222001002101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222001002101 is a deficient number, since it is larger than the sum of its proper divisors (560688456075).

1222001002101 is a wasteful number, since it uses less digits than its factorization.

1222001002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22473.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1222001002101 its reverse (1012001002221), we get a palindrome (2234002004322).

The spelling of 1222001002101 in words is "one trillion, two hundred twenty-two billion, one million, two thousand, one hundred one".