10001121102 has 48 divisors (see below), whose sum is σ = 24782110080. Its totient is φ = 2855452176.

The previous prime is 10001121059. The next prime is 10001121113. The reversal of 10001121102 is 20112110001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156633 + ... + 211035.

It is an arithmetic number, because the mean of its divisors is an integer number (516293960).

Almost surely, 2^10001121102 is an apocalyptic number.

10001121102 is an abundant number, since it is smaller than the sum of its proper divisors (14780988978).

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

10001121102 is a wasteful number, since it uses less digits than its factorization.

10001121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55877 (or 55874 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10001121102 its reverse (20112110001), we get a palindrome (30113231103).

The spelling of 10001121102 in words is "ten billion, one million, one hundred twenty-one thousand, one hundred two".