1000021004111 has 2 divisors, whose sum is σ = 1000021004112. Its totient is φ = 1000021004110.

The previous prime is 1000021004089. The next prime is 1000021004119. The reversal of 1000021004111 is 1114001200001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000021004111 - 2²² = 1000016809807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000021004092 and 1000021004101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000021004119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010502055 + 500010502056.

It is an arithmetic number, because the mean of its divisors is an integer number (500010502056).

Almost surely, 2^{1000021004111} is an apocalyptic number.

1000021004111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000021004111 is an equidigital number, since it uses as much as digits as its factorization.

1000021004111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000021004111 its reverse (1114001200001), we get a palindrome (2114022204112).

The spelling of 1000021004111 in words is "one trillion, twenty-one million, four thousand, one hundred eleven".