201213442 has 8 divisors (see below), whose sum is σ = 302230800. Its totient is φ = 100469844.

The previous prime is 201213433. The next prime is 201213443. The reversal of 201213442 is 244312102.

201213442 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (201213443) 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, 66592 + ... + 69547.

It is an arithmetic number, because the mean of its divisors is an integer number (37778850).

Almost surely, 2^201213442 is an apocalyptic number.

201213442 is a deficient number, since it is larger than the sum of its proper divisors (101017358).

201213442 is a wasteful number, since it uses less digits than its factorization.

201213442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136880.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 201213442 is about 14184.9724003961. The cubic root of 201213442 is about 585.9838724027.

Adding to 201213442 its reverse (244312102), we get a palindrome (445525544).

The spelling of 201213442 in words is "two hundred one million, two hundred thirteen thousand, four hundred forty-two".