121222011 has 8 divisors (see below), whose sum is σ = 162182160. Its totient is φ = 80538272.

The previous prime is 121222007. The next prime is 121222037. The reversal of 121222011 is 110222121.

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 121222011 - 2² = 121222007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121222051) 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, 68076 + ... + 69833.

It is an arithmetic number, because the mean of its divisors is an integer number (20272770).

Almost surely, 2^121222011 is an apocalyptic number.

121222011 is a deficient number, since it is larger than the sum of its proper divisors (40960149).

121222011 is a wasteful number, since it uses less digits than its factorization.

121222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138205.

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

The square root of 121222011 is about 11010.0867843991. The cubic root of 121222011 is about 494.9110624828.

Adding to 121222011 its reverse (110222121), we get a palindrome (231444132).

It can be divided in two parts, 12122 and 2011, that multiplied together give a palindrome (24377342).

The spelling of 121222011 in words is "one hundred twenty-one million, two hundred twenty-two thousand, eleven".