121122010212111 has 48 divisors (see below), whose sum is σ = 176946769592320. Its totient is φ = 79833520166400.

The previous prime is 121122010212097. The next prime is 121122010212163. The reversal of 121122010212111 is 111212010221121.

It is a happy number.

121122010212111 is a `hidden beast` number, since 1 + 211 + 220 + 1 + 0 + 21 + 211 + 1 = 666.

It is not a de Polignac number, because 121122010212111 - 2¹¹ = 121122010210063 is a prime.

It is a super-2 number, since 2×121122010212111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122010212191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1260366015 + ... + 1260462111.

Almost surely, 2^{121122010212111} is an apocalyptic number.

121122010212111 is a deficient number, since it is larger than the sum of its proper divisors (55824759380209).

121122010212111 is a wasteful number, since it uses less digits than its factorization.

121122010212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100636 (or 100633 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121122010212111 its reverse (111212010221121), we get a palindrome (232334020433232).

The spelling of 121122010212111 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, ten million, two hundred twelve thousand, one hundred eleven".