10000021211111 has 8 divisors (see below), whose sum is σ = 10007296916448. Its totient is φ = 9992747268000.

The previous prime is 10000021211053. The next prime is 10000021211123. The reversal of 10000021211111 is 11111212000001.

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 10000021211111 - 2³⁸ = 9725143304167 is a prime.

It is a super-2 number, since 2×10000021211111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000021211092 and 10000021211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000021211711) 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, 11021126 + ... + 11893916.

It is an arithmetic number, because the mean of its divisors is an integer number (1250912114556).

Almost surely, 2^{10000021211111} is an apocalyptic number.

10000021211111 is a deficient number, since it is larger than the sum of its proper divisors (7275705337).

10000021211111 is an equidigital number, since it uses as much as digits as its factorization.

10000021211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881113.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10000021211111 its reverse (11111212000001), we get a palindrome (21111233211112).

The spelling of 10000021211111 in words is "ten trillion, twenty-one million, two hundred eleven thousand, one hundred eleven".