232121012 has 6 divisors (see below), whose sum is σ = 406211778. Its totient is φ = 116060504.

The previous prime is 232121011. The next prime is 232121027. The reversal of 232121012 is 210121232.

It is a happy number.

232121012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 230857636 + 1263376 = 15194^2 + 1124^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29015123 + ... + 29015130.

It is an arithmetic number, because the mean of its divisors is an integer number (67701963).

Almost surely, 2^232121012 is an apocalyptic number.

It is an amenable number.

232121012 is a deficient number, since it is larger than the sum of its proper divisors (174090766).

232121012 is a wasteful number, since it uses less digits than its factorization.

232121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58030257 (or 58030255 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 232121012 is about 15235.5181073700. The cubic root of 232121012 is about 614.5701819707.

Adding to 232121012 its reverse (210121232), we get a palindrome (442242244).

The spelling of 232121012 in words is "two hundred thirty-two million, one hundred twenty-one thousand, twelve".