121132122011 has 4 divisors (see below), whose sum is σ = 122380906872. Its totient is φ = 119883337152.

The previous prime is 121132121993. The next prime is 121132122019. The reversal of 121132122011 is 110221231121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110221231121 = 253427 ⋅434923.

It is a cyclic number.

It is not a de Polignac number, because 121132122011 - 2¹⁸ = 121131859867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121132122019) 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, 624392285 + ... + 624392478.

It is an arithmetic number, because the mean of its divisors is an integer number (30595226718).

Almost surely, 2^121132122011 is an apocalyptic number.

121132122011 is a deficient number, since it is larger than the sum of its proper divisors (1248784861).

121132122011 is an equidigital number, since it uses as much as digits as its factorization.

121132122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248784860.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121132122011 its reverse (110221231121), we get a palindrome (231353353132).

The spelling of 121132122011 in words is "one hundred twenty-one billion, one hundred thirty-two million, one hundred twenty-two thousand, eleven".