10002111222111 has 16 divisors (see below), whose sum is σ = 13477181148288. Its totient is φ = 6597709536800.

The previous prime is 10002111222053. The next prime is 10002111222161. The reversal of 10002111222111 is 11122211120001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10002111222111 - 2³¹ = 9999963738463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002111222161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18712845 + ... + 19239926.

It is an arithmetic number, because the mean of its divisors is an integer number (842323821768).

Almost surely, 2^{10002111222111} is an apocalyptic number.

10002111222111 is a deficient number, since it is larger than the sum of its proper divisors (3475069926177).

10002111222111 is a wasteful number, since it uses less digits than its factorization.

10002111222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37953702.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10002111222111 its reverse (11122211120001), we get a palindrome (21124322342112).

The spelling of 10002111222111 in words is "ten trillion, two billion, one hundred eleven million, two hundred twenty-two thousand, one hundred eleven".