121231332233 has 4 divisors (see below), whose sum is σ = 132252362448. Its totient is φ = 110210302020.

The previous prime is 121231332143. The next prime is 121231332239. The reversal of 121231332233 is 332233132121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332233132121 = 11 ⋅30203012011.

It is a cyclic number.

It is not a de Polignac number, because 121231332233 - 2¹² = 121231328137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121231332239) 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, 5510515091 + ... + 5510515112.

It is an arithmetic number, because the mean of its divisors is an integer number (33063090612).

Almost surely, 2^121231332233 is an apocalyptic number.

It is an amenable number.

121231332233 is a deficient number, since it is larger than the sum of its proper divisors (11021030215).

121231332233 is a wasteful number, since it uses less digits than its factorization.

121231332233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021030214.

The product of its digits is 3888, while the sum is 26.

Adding to 121231332233 its reverse (332233132121), we get a palindrome (453464464354).

The spelling of 121231332233 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred thirty-two thousand, two hundred thirty-three".