121110000021211 has 4 divisors (see below), whose sum is σ = 121121017043032. Its totient is φ = 121098982999392.

The previous prime is 121110000021173. The next prime is 121110000021233. The reversal of 121110000021211 is 112120000011121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121110000021211 - 2¹⁹ = 121109999496923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121110000021191 and 121110000021200.

It is not an unprimeable number, because it can be changed into a prime (121110000021271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5508494421 + ... + 5508516406.

It is an arithmetic number, because the mean of its divisors is an integer number (30280254260758).

Almost surely, 2^{121110000021211} is an apocalyptic number.

121110000021211 is a deficient number, since it is larger than the sum of its proper divisors (11017021821).

121110000021211 is a wasteful number, since it uses less digits than its factorization.

121110000021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017021820.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121110000021211 its reverse (112120000011121), we get a palindrome (233230000032332).

The spelling of 121110000021211 in words is "one hundred twenty-one trillion, one hundred ten billion, twenty-one thousand, two hundred eleven".