10002111002001 has 12 divisors (see below), whose sum is σ = 14754887152512. Its totient is φ = 6526200086136.

The previous prime is 10002111001997. The next prime is 10002111002003. The reversal of 10002111002001 is 10020011120001.

It is a happy number.

It is not a de Polignac number, because 10002111002001 - 2² = 10002111001997 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (10002111002003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11822825821 + ... + 11822826666.

It is an arithmetic number, because the mean of its divisors is an integer number (1229573929376).

Almost surely, 2^{10002111002001} is an apocalyptic number.

It is an amenable number.

10002111002001 is a deficient number, since it is larger than the sum of its proper divisors (4752776150511).

10002111002001 is a wasteful number, since it uses less digits than its factorization.

10002111002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23645652540 (or 23645652537 counting only the distinct ones).

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

Adding to 10002111002001 its reverse (10020011120001), we get a palindrome (20022122122002).

The spelling of 10002111002001 in words is "ten trillion, two billion, one hundred eleven million, two thousand, one".