2111100001002 has 16 divisors (see below), whose sum is σ = 4691333335680. Its totient is φ = 703700000316.

The previous prime is 2111100000979. The next prime is 2111100001019. The reversal of 2111100001002 is 2001000011112.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19547222178 + ... + 19547222285.

It is an arithmetic number, because the mean of its divisors is an integer number (293208333480).

Almost surely, 2^{2111100001002} is an apocalyptic number.

2111100001002 is an abundant number, since it is smaller than the sum of its proper divisors (2580233334678).

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

2111100001002 is a wasteful number, since it uses less digits than its factorization.

2111100001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39094444474 (or 39094444468 counting only the distinct ones).

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

Adding to 2111100001002 its reverse (2001000011112), we get a palindrome (4112100012114).

The spelling of 2111100001002 in words is "two trillion, one hundred eleven billion, one hundred million, one thousand, two".