1012121232 has 40 divisors (see below), whose sum is σ = 2698993920. Its totient is φ = 326490240.

The previous prime is 1012121221. The next prime is 1012121251. The reversal of 1012121232 is 2321212101.

1012121232 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

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, 338607 + ... + 341582.

It is an arithmetic number, because the mean of its divisors is an integer number (67474848).

Almost surely, 2^1012121232 is an apocalyptic number.

1012121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012121232 is an abundant number, since it is smaller than the sum of its proper divisors (1686872688).

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

1012121232 is a wasteful number, since it uses less digits than its factorization.

1012121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680231 (or 680225 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1012121232 is about 31813.8528317461. The cubic root of 1012121232 is about 1004.0241948001.

Adding to 1012121232 its reverse (2321212101), we get a palindrome (3333333333).

The spelling of 1012121232 in words is "one billion, twelve million, one hundred twenty-one thousand, two hundred thirty-two".