133212101 has 8 divisors (see below), whose sum is σ = 145716384. Its totient is φ = 120773520.

The previous prime is 133212089. The next prime is 133212127. The reversal of 133212101 is 101212331.

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

It is a cyclic number.

It is not a de Polignac number, because 133212101 - 2¹⁴ = 133195717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133212181) 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, 12131 + ... + 20336.

It is an arithmetic number, because the mean of its divisors is an integer number (18214548).

Almost surely, 2^133212101 is an apocalyptic number.

133212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133212101 is a deficient number, since it is larger than the sum of its proper divisors (12504283).

133212101 is a wasteful number, since it uses less digits than its factorization.

133212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32851.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 133212101 is about 11541.7546759581. The cubic root of 133212101 is about 510.7180721766.

Adding to 133212101 its reverse (101212331), we get a palindrome (234424432).

The spelling of 133212101 in words is "one hundred thirty-three million, two hundred twelve thousand, one hundred one".