2101012 has 6 divisors (see below), whose sum is σ = 3676778.
Its totient is φ = 1050504.
The previous prime is 2101007. The next prime is 2101019.
2101012 is nontrivially palindromic in base 10.
2101012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It can be written as a sum of positive squares in only one way, i.e., 2085136 + 15876 = 1444^2 + 126^2
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 2100986 and 2101004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2101019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262623 + ... + 262630.
22101012 is an apocalyptic number.
It is an amenable number.
2101012 is a deficient number, since it is larger than the sum of its proper divisors (1575766).
2101012 is a wasteful number, since it uses less digits than its factorization.
2101012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 525257 (or 525255 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 7.
The square root of 2101012 is about 1449.4868057351.
The cubic root of 2101012 is about 128.0784837685.
The spelling of 2101012 in words is "two million, one hundred one thousand, twelve".