1020121211002 has 16 divisors (see below), whose sum is σ = 1543688455680. Its totient is φ = 505570288608.

The previous prime is 1020121210991. The next prime is 1020121211047. The reversal of 1020121211002 is 2001121210201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2802138 + ... + 3145189.

It is an arithmetic number, because the mean of its divisors is an integer number (96480528480).

Almost surely, 2^{1020121211002} is an apocalyptic number.

1020121211002 is a deficient number, since it is larger than the sum of its proper divisors (523567244678).

1020121211002 is a wasteful number, since it uses less digits than its factorization.

1020121211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5948085.

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

Adding to 1020121211002 its reverse (2001121210201), we get a palindrome (3021242421203).

The spelling of 1020121211002 in words is "one trillion, twenty billion, one hundred twenty-one million, two hundred eleven thousand, two".