1000021102111 has 16 divisors (see below), whose sum is σ = 1021375564704. Its totient is φ = 978877177344.

The previous prime is 1000021101979. The next prime is 1000021102127. The reversal of 1000021102111 is 1112011200001.

It is a cyclic number.

It is not a de Polignac number, because 1000021102111 - 2³¹ = 997873618463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021102141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49724920 + ... + 49745026.

It is an arithmetic number, because the mean of its divisors is an integer number (63835972794).

Almost surely, 2^{1000021102111} is an apocalyptic number.

1000021102111 is a deficient number, since it is larger than the sum of its proper divisors (21354462593).

1000021102111 is a wasteful number, since it uses less digits than its factorization.

1000021102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25290.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1000021102111 its reverse (1112011200001), we get a palindrome (2112032302112).

The spelling of 1000021102111 in words is "one trillion, twenty-one million, one hundred two thousand, one hundred eleven".