1010000111021 has 16 divisors (see below), whose sum is σ = 1109730222720. Its totient is φ = 911607582720.

The previous prime is 1010000110997. The next prime is 1010000111083. The reversal of 1010000111021 is 1201110000101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1010000111021 - 2³⁸ = 735122204077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010000161021) 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, 594965 + ... + 1540773.

It is an arithmetic number, because the mean of its divisors is an integer number (69358138920).

Almost surely, 2^{1010000111021} is an apocalyptic number.

1010000111021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1010000111021 is a deficient number, since it is larger than the sum of its proper divisors (99730111699).

1010000111021 is a wasteful number, since it uses less digits than its factorization.

1010000111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946516.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1010000111021 its reverse (1201110000101), we get a palindrome (2211110111122).

The spelling of 1010000111021 in words is "one trillion, ten billion, one hundred eleven thousand, twenty-one".