1021230121002 has 32 divisors (see below), whose sum is σ = 2513797222272. Its totient is φ = 269335416384.

The previous prime is 1021230120983. The next prime is 1021230121019. The reversal of 1021230121002 is 2001210321201.

It is a super-2 number, since 2×1021230121002² (a number of 25 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 935191873 + ... + 935192964.

It is an arithmetic number, because the mean of its divisors is an integer number (78556163196).

Almost surely, 2^{1021230121002} is an apocalyptic number.

1021230121002 is an abundant number, since it is smaller than the sum of its proper divisors (1492567101270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021230121002 is a wasteful number, since it uses less digits than its factorization.

1021230121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870384862.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1021230121002 its reverse (2001210321201), we get a palindrome (3022440442203).

The spelling of 1021230121002 in words is "one trillion, twenty-one billion, two hundred thirty million, one hundred twenty-one thousand, two".