121121000022211 has 16 divisors (see below), whose sum is σ = 142434465465600. Its totient is φ = 100837127166048.

The previous prime is 121121000022173. The next prime is 121121000022229. The reversal of 121121000022211 is 112220000121121.

It is not a de Polignac number, because 121121000022211 - 2¹⁵ = 121120999989443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121121000020211) 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, 1123955476 + ... + 1124063233.

It is an arithmetic number, because the mean of its divisors is an integer number (8902154091600).

Almost surely, 2^{121121000022211} is an apocalyptic number.

121121000022211 is a deficient number, since it is larger than the sum of its proper divisors (21313465443389).

121121000022211 is a wasteful number, since it uses less digits than its factorization.

121121000022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248018938.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121121000022211 its reverse (112220000121121), we get a palindrome (233341000143332).

The spelling of 121121000022211 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, twenty-two thousand, two hundred eleven".