1020121121002 has 8 divisors (see below), whose sum is σ = 1536530983812. Its totient is φ = 507944126400.

The previous prime is 1020121120987. The next prime is 1020121121021. The reversal of 1020121121002 is 2001211210201.

1020121121002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 971231931121 + 48889189881 = 985511^2 + 221109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058216449 + ... + 1058217412.

Almost surely, 2^{1020121121002} is an apocalyptic number.

1020121121002 is a deficient number, since it is larger than the sum of its proper divisors (516409862810).

1020121121002 is a wasteful number, since it uses less digits than its factorization.

1020121121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116434104.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020121121002 its reverse (2001211210201), we get a palindrome (3021332331203).

The spelling of 1020121121002 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, two".