133012220121 has 32 divisors (see below), whose sum is σ = 217997015040. Its totient is φ = 79478053200.

The previous prime is 133012220113. The next prime is 133012220137. The reversal of 133012220121 is 121022210331.

It is not a de Polignac number, because 133012220121 - 2³ = 133012220113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133012220094 and 133012220103.

It is not an unprimeable number, because it can be changed into a prime (133012220141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3132805 + ... + 3174978.

It is an arithmetic number, because the mean of its divisors is an integer number (6812406720).

Almost surely, 2^133012220121 is an apocalyptic number.

133012220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133012220121 is a deficient number, since it is larger than the sum of its proper divisors (84984794919).

133012220121 is a wasteful number, since it uses less digits than its factorization.

133012220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307874 (or 6307868 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 133012220121 its reverse (121022210331), we get a palindrome (254034430452).

The spelling of 133012220121 in words is "one hundred thirty-three billion, twelve million, two hundred twenty thousand, one hundred twenty-one".