133222013021 has 4 divisors (see below), whose sum is σ = 137519497344. Its totient is φ = 128924528700.

The previous prime is 133222013009. The next prime is 133222013033. The reversal of 133222013021 is 120310222331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (133222013009) and next prime (133222013033).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133222013021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133222012984 and 133222013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133222010021) 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, 2148742115 + ... + 2148742176.

It is an arithmetic number, because the mean of its divisors is an integer number (34379874336).

Almost surely, 2^133222013021 is an apocalyptic number.

It is an amenable number.

133222013021 is a deficient number, since it is larger than the sum of its proper divisors (4297484323).

133222013021 is an equidigital number, since it uses as much as digits as its factorization.

133222013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297484322.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 133222013021 its reverse (120310222331), we get a palindrome (253532235352).

The spelling of 133222013021 in words is "one hundred thirty-three billion, two hundred twenty-two million, thirteen thousand, twenty-one".