1021232020012 has 12 divisors (see below), whose sum is σ = 1789226905536. Its totient is φ = 510024332720.

The previous prime is 1021232020007. The next prime is 1021232020013. The reversal of 1021232020012 is 2100202321201.

It is a happy number.

It is a super-3 number, since 3×1021232020012³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021232020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147915439 + ... + 147922342.

It is an arithmetic number, because the mean of its divisors is an integer number (149102242128).

Almost surely, 2^{1021232020012} is an apocalyptic number.

It is an amenable number.

1021232020012 is a deficient number, since it is larger than the sum of its proper divisors (767994885524).

1021232020012 is a wasteful number, since it uses less digits than its factorization.

1021232020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295838648 (or 295838646 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1021232020012 its reverse (2100202321201), we get a palindrome (3121434341213).

The spelling of 1021232020012 in words is "one trillion, twenty-one billion, two hundred thirty-two million, twenty thousand, twelve".