1012130021236 has 12 divisors (see below), whose sum is σ = 1771697759328. Its totient is φ = 505930661432.

The previous prime is 1012130021197. The next prime is 1012130021237. The reversal of 1012130021236 is 6321200312101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012130021237) 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, 33570346 + ... + 33600481.

It is an arithmetic number, because the mean of its divisors is an integer number (147641479944).

Almost surely, 2^{1012130021236} is an apocalyptic number.

It is an amenable number.

1012130021236 is a deficient number, since it is larger than the sum of its proper divisors (759567738092).

1012130021236 is a wasteful number, since it uses less digits than its factorization.

1012130021236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67174598 (or 67174596 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1012130021236 its reverse (6321200312101), we get a palindrome (7333330333337).

The spelling of 1012130021236 in words is "one trillion, twelve billion, one hundred thirty million, twenty-one thousand, two hundred thirty-six".