142011212 has 18 divisors (see below), whose sum is σ = 289094652. Its totient is φ = 60861864.

The previous prime is 142011209. The next prime is 142011227. The reversal of 142011212 is 212110241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 362078 + ... + 362469.

It is an arithmetic number, because the mean of its divisors is an integer number (16060814).

Almost surely, 2^142011212 is an apocalyptic number.

It is an amenable number.

142011212 is an abundant number, since it is smaller than the sum of its proper divisors (147083440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142011212 is a wasteful number, since it uses less digits than its factorization.

142011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724565 (or 724556 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 142011212 is about 11916.8457235965. The cubic root of 142011212 is about 521.7240752906.

Adding to 142011212 its reverse (212110241), we get a palindrome (354121453).

The spelling of 142011212 in words is "one hundred forty-two million, eleven thousand, two hundred twelve".