2001121000102 has 48 divisors (see below), whose sum is σ = 3802598864640. Its totient is φ = 772080262272.

The previous prime is 2001121000057. The next prime is 2001121000127. The reversal of 2001121000102 is 2010001211002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10658952 + ... + 10845067.

It is an arithmetic number, because the mean of its divisors is an integer number (79220809680).

Almost surely, 2^{2001121000102} is an apocalyptic number.

2001121000102 is a deficient number, since it is larger than the sum of its proper divisors (1801477864538).

2001121000102 is a wasteful number, since it uses less digits than its factorization.

2001121000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21504085 (or 21504068 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2001121000102 its reverse (2010001211002), we get a palindrome (4011122211104).

The spelling of 2001121000102 in words is "two trillion, one billion, one hundred twenty-one million, one hundred two", and thus it is an aban number.