122121201221011 has 8 divisors (see below), whose sum is σ = 122150330996400. Its totient is φ = 122092073598720.

The previous prime is 122121201220987. The next prime is 122121201221029. The reversal of 122121201221011 is 110122102121221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122121201221011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122121201221011.

It is not an unprimeable number, because it can be changed into a prime (122121201221051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115904655 + ... + 116953543.

It is an arithmetic number, because the mean of its divisors is an integer number (15268791374550).

Almost surely, 2^{122121201221011} is an apocalyptic number.

122121201221011 is a deficient number, since it is larger than the sum of its proper divisors (29129775389).

122121201221011 is a wasteful number, since it uses less digits than its factorization.

122121201221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076549.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122121201221011 its reverse (110122102121221), we get a palindrome (232243303342232).

The spelling of 122121201221011 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty-one thousand, eleven".