133001214421 has 4 divisors (see below), whose sum is σ = 133518729132. Its totient is φ = 132483699712.

The previous prime is 133001214383. The next prime is 133001214427. The reversal of 133001214421 is 124412100331.

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 85960376100 + 47040838321 = 293190^2 + 216889^2 .

It is a cyclic number.

It is not a de Polignac number, because 133001214421 - 2¹⁷ = 133001083349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133001214392 and 133001214401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133001214427) 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, 258756970 + ... + 258757483.

It is an arithmetic number, because the mean of its divisors is an integer number (33379682283).

Almost surely, 2^133001214421 is an apocalyptic number.

It is an amenable number.

133001214421 is a deficient number, since it is larger than the sum of its proper divisors (517514711).

133001214421 is an equidigital number, since it uses as much as digits as its factorization.

133001214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517514710.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 133001214421 its reverse (124412100331), we get a palindrome (257413314752).

The spelling of 133001214421 in words is "one hundred thirty-three billion, one million, two hundred fourteen thousand, four hundred twenty-one".