121220033331 has 8 divisors (see below), whose sum is σ = 162106316944. Its totient is φ = 80573552640.

The previous prime is 121220033327. The next prime is 121220033351. The reversal of 121220033331 is 133330022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121220033331 - 2² = 121220033327 is a prime.

It is a super-2 number, since 2×121220033331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121220033298 and 121220033307.

It is not an unprimeable number, because it can be changed into a prime (121220033351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59949550 + ... + 59951571.

It is an arithmetic number, because the mean of its divisors is an integer number (20263289618).

Almost surely, 2^121220033331 is an apocalyptic number.

121220033331 is a deficient number, since it is larger than the sum of its proper divisors (40886283613).

121220033331 is a wasteful number, since it uses less digits than its factorization.

121220033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119901461.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121220033331 its reverse (133330022121), we get a palindrome (254550055452).

The spelling of 121220033331 in words is "one hundred twenty-one billion, two hundred twenty million, thirty-three thousand, three hundred thirty-one".