152021212 has 24 divisors (see below), whose sum is σ = 304305120. Its totient is φ = 65095680.

The previous prime is 152021203. The next prime is 152021227. The reversal of 152021212 is 212120251.

It is a happy number.

152021212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×152021212² = 46220897795897888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56964 + ... + 59572.

It is an arithmetic number, because the mean of its divisors is an integer number (12679380).

Almost surely, 2^152021212 is an apocalyptic number.

It is an amenable number.

152021212 is an abundant number, since it is smaller than the sum of its proper divisors (152283908).

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

152021212 is a wasteful number, since it uses less digits than its factorization.

152021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701 (or 4699 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 152021212 is about 12329.6882361234. The cubic root of 152021212 is about 533.7051540878.

Adding to 152021212 its reverse (212120251), we get a palindrome (364141463).

The spelling of 152021212 in words is "one hundred fifty-two million, twenty-one thousand, two hundred twelve".