133221022 has 16 divisors (see below), whose sum is σ = 218556144. Its totient is φ = 60400000.

The previous prime is 133221019. The next prime is 133221029. The reversal of 133221022 is 220122331.

It is a junction number, because it is equal to n+sod(n) for n = 133220987 and 133221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133221029) 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, 1272 + ... + 16372.

It is an arithmetic number, because the mean of its divisors is an integer number (13659759).

Almost surely, 2^133221022 is an apocalyptic number.

133221022 is a deficient number, since it is larger than the sum of its proper divisors (85335122).

133221022 is a wasteful number, since it uses less digits than its factorization.

133221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15515.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 133221022 is about 11542.1411358552. The cubic root of 133221022 is about 510.7294725779.

Adding to 133221022 its reverse (220122331), we get a palindrome (353343353).

The spelling of 133221022 in words is "one hundred thirty-three million, two hundred twenty-one thousand, twenty-two".