133021101 has 16 divisors (see below), whose sum is σ = 179638784. Its totient is φ = 87547824.

The previous prime is 133021099. The next prime is 133021153. The reversal of 133021101 is 101120331.

It is not a de Polignac number, because 133021101 - 2¹ = 133021099 is a prime.

It is a super-2 number, since 2×133021101² = 35389226622504402, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133021171) 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, 168630 + ... + 169416.

It is an arithmetic number, because the mean of its divisors is an integer number (11227424).

Almost surely, 2^133021101 is an apocalyptic number.

It is an amenable number.

133021101 is a deficient number, since it is larger than the sum of its proper divisors (46617683).

133021101 is a wasteful number, since it uses less digits than its factorization.

133021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 133021101 is about 11533.4774027611. The cubic root of 133021101 is about 510.4738656084.

Adding to 133021101 its reverse (101120331), we get a palindrome (234141432).

The spelling of 133021101 in words is "one hundred thirty-three million, twenty-one thousand, one hundred one".