2121102 has 12 divisors (see below), whose sum is σ = 4595760.
Its totient is φ = 707028.
The previous prime is 2121043. The next prime is 2121121. The reversal of 2121102 is 2011212.
Adding to 2121102 its reverse (2011212), we get a palindrome (4132314).
It can be divided in two parts, 2 and 121102, that added together give a square (121104 = 3482).
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58902 + ... + 58937.
It is an arithmetic number, because the mean of its divisors is an integer number (382980).
22121102 is an apocalyptic number.
2121102 is an abundant number, since it is smaller than the sum of its proper divisors (2474658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2121102 is a wasteful number, since it uses less digits than its factorization.
2121102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117847 (or 117844 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 2121102 is about 1456.4003570447.
The cubic root of 2121102 is about 128.4854207848.
The spelling of 2121102 in words is "two million, one hundred twenty-one thousand, one hundred two".