121011233331 has 16 divisors (see below), whose sum is σ = 172758938400. Its totient is φ = 75075483648.

The previous prime is 121011233311. The next prime is 121011233341. The reversal of 121011233331 is 133332110121.

It is a happy number.

It is not a de Polignac number, because 121011233331 - 2⁶ = 121011233267 is a prime.

It is a super-2 number, since 2×121011233331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121011233298 and 121011233307.

It is not an unprimeable number, because it can be changed into a prime (121011233311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13325626 + ... + 13334703.

It is an arithmetic number, because the mean of its divisors is an integer number (10797433650).

Almost surely, 2^121011233331 is an apocalyptic number.

121011233331 is a deficient number, since it is larger than the sum of its proper divisors (51747705069).

121011233331 is a wasteful number, since it uses less digits than its factorization.

121011233331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26660438.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 121011233331 its reverse (133332110121), we get a palindrome (254343343452).

The spelling of 121011233331 in words is "one hundred twenty-one billion, eleven million, two hundred thirty-three thousand, three hundred thirty-one".