121101010212211 has 4 divisors (see below), whose sum is σ = 121843961195272. Its totient is φ = 120358059229152.

The previous prime is 121101010212173. The next prime is 121101010212233. The reversal of 121101010212211 is 112212010101121.

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 121101010212211 - 2³¹ = 121098862728563 is a prime.

It is a super-2 number, since 2×121101010212211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101010312211) 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, 371475491286 + ... + 371475491611.

It is an arithmetic number, because the mean of its divisors is an integer number (30460990298818).

Almost surely, 2^{121101010212211} is an apocalyptic number.

121101010212211 is a deficient number, since it is larger than the sum of its proper divisors (742950983061).

121101010212211 is an equidigital number, since it uses as much as digits as its factorization.

121101010212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742950983060.

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

Adding to 121101010212211 its reverse (112212010101121), we get a palindrome (233313020313332).

The spelling of 121101010212211 in words is "one hundred twenty-one trillion, one hundred one billion, ten million, two hundred twelve thousand, two hundred eleven".