121001222011 has 8 divisors (see below), whose sum is σ = 127822986000. Its totient is φ = 114224785920.

The previous prime is 121001221987. The next prime is 121001222029. The reversal of 121001222011 is 110222100121.

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

It is a cyclic number.

It is not a de Polignac number, because 121001222011 - 2²¹ = 120999124859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121001221982 and 121001222000.

It is not an unprimeable number, because it can be changed into a prime (121001222911) 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, 11326486 + ... + 11337163.

It is an arithmetic number, because the mean of its divisors is an integer number (15977873250).

Almost surely, 2^121001222011 is an apocalyptic number.

121001222011 is a deficient number, since it is larger than the sum of its proper divisors (6821763989).

121001222011 is a wasteful number, since it uses less digits than its factorization.

121001222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22663949.

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

Adding to 121001222011 its reverse (110222100121), we get a palindrome (231223322132).

The spelling of 121001222011 in words is "one hundred twenty-one billion, one million, two hundred twenty-two thousand, eleven".