122010001011221 has 16 divisors (see below), whose sum is σ = 129475107792576. Its totient is φ = 114576942932736.

The previous prime is 122010001011193. The next prime is 122010001011247. The reversal of 122010001011221 is 122110100010221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122010001011221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122010001011196 and 122010001011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010001011721) 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, 90126470 + ... + 91470216.

It is an arithmetic number, because the mean of its divisors is an integer number (8092194237036).

Almost surely, 2^{122010001011221} is an apocalyptic number.

It is an amenable number.

122010001011221 is a deficient number, since it is larger than the sum of its proper divisors (7465106781355).

122010001011221 is a wasteful number, since it uses less digits than its factorization.

122010001011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355668.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122010001011221 its reverse (122110100010221), we get a palindrome (244120101021442).

The spelling of 122010001011221 in words is "one hundred twenty-two trillion, ten billion, one million, eleven thousand, two hundred twenty-one".