1000021011102 has 32 divisors (see below), whose sum is σ = 2222648263200. Its totient is φ = 333283434624.

The previous prime is 1000021011049. The next prime is 1000021011107. The reversal of 1000021011102 is 2011101200001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021011107) 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, 1260763 + ... + 1894614.

It is an arithmetic number, because the mean of its divisors is an integer number (69457758225).

Almost surely, 2^{1000021011102} is an apocalyptic number.

1000021011102 is an abundant number, since it is smaller than the sum of its proper divisors (1222627252098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000021011102 is a wasteful number, since it uses less digits than its factorization.

1000021011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161257 (or 3161251 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1000021011102 its reverse (2011101200001), we get a palindrome (3011122211103).

The spelling of 1000021011102 in words is "one trillion, twenty-one million, eleven thousand, one hundred two".