1021230121004 has 12 divisors (see below), whose sum is σ = 1813826633304. Its totient is φ = 502993940064.

The previous prime is 1021230120983. The next prime is 1021230121019. The reversal of 1021230121004 is 4001210321201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1905279809 + ... + 1905280344.

It is an arithmetic number, because the mean of its divisors is an integer number (151152219442).

Almost surely, 2^{1021230121004} is an apocalyptic number.

It is an amenable number.

1021230121004 is a deficient number, since it is larger than the sum of its proper divisors (792596512300).

1021230121004 is a wasteful number, since it uses less digits than its factorization.

1021230121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810560224 (or 3810560222 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1021230121004 its reverse (4001210321201), we get a palindrome (5022440442205).

The spelling of 1021230121004 in words is "one trillion, twenty-one billion, two hundred thirty million, one hundred twenty-one thousand, four".