1021100111007 has 8 divisors (see below), whose sum is σ = 1361484230400. Its totient is φ = 680724699480.

The previous prime is 1021100110999. The next prime is 1021100111047. The reversal of 1021100111007 is 7001110011201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1021100111007 - 2³ = 1021100110999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021100111047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1898257 + ... + 2376042.

It is an arithmetic number, because the mean of its divisors is an integer number (170185528800).

Almost surely, 2^{1021100111007} is an apocalyptic number.

1021100111007 is a deficient number, since it is larger than the sum of its proper divisors (340384119393).

1021100111007 is an equidigital number, since it uses as much as digits as its factorization.

1021100111007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353933.

The product of its (nonzero) digits is 14, while the sum is 15.

Adding to 1021100111007 its reverse (7001110011201), we get a palindrome (8022210122208).

The spelling of 1021100111007 in words is "one trillion, twenty-one billion, one hundred million, one hundred eleven thousand, seven".