133001120212021 has 4 divisors (see below), whose sum is σ = 133027672646700. Its totient is φ = 132974567777344.

The previous prime is 133001120212003. The next prime is 133001120212033. The reversal of 133001120212021 is 120212021100331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68084034203025 + 64917086008996 = 8251305^2 + 8057114^2 .

It is a cyclic number.

It is not a de Polignac number, because 133001120212021 - 2⁵ = 133001120211989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133001120212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133001120216021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13276209826 + ... + 13276219843.

It is an arithmetic number, because the mean of its divisors is an integer number (33256918161675).

Almost surely, 2^{133001120212021} is an apocalyptic number.

It is an amenable number.

133001120212021 is a deficient number, since it is larger than the sum of its proper divisors (26552434679).

133001120212021 is an equidigital number, since it uses as much as digits as its factorization.

133001120212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26552434678.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 133001120212021 its reverse (120212021100331), we get a palindrome (253213141312352).

The spelling of 133001120212021 in words is "one hundred thirty-three trillion, one billion, one hundred twenty million, two hundred twelve thousand, twenty-one".