1001112102121 has 8 divisors (see below), whose sum is σ = 1014991947200. Its totient is φ = 987327651600.

The previous prime is 1001112102113. The next prime is 1001112102139. The reversal of 1001112102121 is 1212012111001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1001112102121 - 2³ = 1001112102113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001112105121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23827506 + ... + 23869483.

It is an arithmetic number, because the mean of its divisors is an integer number (126873993400).

Almost surely, 2^{1001112102121} is an apocalyptic number.

It is an amenable number.

1001112102121 is a deficient number, since it is larger than the sum of its proper divisors (13879845079).

1001112102121 is a wasteful number, since it uses less digits than its factorization.

1001112102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47697279.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1001112102121 its reverse (1212012111001), we get a palindrome (2213124213122).

The spelling of 1001112102121 in words is "one trillion, one billion, one hundred twelve million, one hundred two thousand, one hundred twenty-one".