1021111110002 has 64 divisors (see below), whose sum is σ = 1581015542400. Its totient is φ = 494477727744.

The previous prime is 1021111110001. The next prime is 1021111110007. The reversal of 1021111110002 is 2000111111201.

It is not an unprimeable number, because it can be changed into a prime (1021111110001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 934227368 + ... + 934228460.

It is an arithmetic number, because the mean of its divisors is an integer number (24703367850).

Almost surely, 2^{1021111110002} is an apocalyptic number.

1021111110002 is a deficient number, since it is larger than the sum of its proper divisors (559904432398).

1021111110002 is a wasteful number, since it uses less digits than its factorization.

1021111110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1021111110002 its reverse (2000111111201), we get a palindrome (3021222221203).

The spelling of 1021111110002 in words is "one trillion, twenty-one billion, one hundred eleven million, one hundred ten thousand, two".