1021234011272 has 96 divisors (see below), whose sum is σ = 2052312098400. Its totient is φ = 475020808704.

The previous prime is 1021234011271. The next prime is 1021234011277. The reversal of 1021234011272 is 2721104321201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1021234011271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1508469398 + ... + 1508470074.

It is an arithmetic number, because the mean of its divisors is an integer number (21378251025).

Almost surely, 2^{1021234011272} is an apocalyptic number.

It is an amenable number.

1021234011272 is an abundant number, since it is smaller than the sum of its proper divisors (1031078087128).

1021234011272 is a wasteful number, since it uses less digits than its factorization.

1021234011272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 1021234011272 its reverse (2721104321201), we get a palindrome (3742338332473).

The spelling of 1021234011272 in words is "one trillion, twenty-one billion, two hundred thirty-four million, eleven thousand, two hundred seventy-two".