2101021102 has 16 divisors (see below), whose sum is σ = 3330633600. Its totient is φ = 991251000.

The previous prime is 2101021073. The next prime is 2101021127. The reversal of 2101021102 is 2011201012.

It is a congruent number.

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, 100602 + ... + 119677.

It is an arithmetic number, because the mean of its divisors is an integer number (208164600).

Almost surely, 2^2101021102 is an apocalyptic number.

2101021102 is a deficient number, since it is larger than the sum of its proper divisors (1229612498).

2101021102 is a wasteful number, since it uses less digits than its factorization.

2101021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220551.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2101021102 is about 45836.8967317815. The cubic root of 2101021102 is about 1280.7866872205.

Adding to 2101021102 its reverse (2011201012), we get a palindrome (4112222114).

The spelling of 2101021102 in words is "two billion, one hundred one million, twenty-one thousand, one hundred two".