2101202012 has 48 divisors (see below), whose sum is σ = 4552578240. Its totient is φ = 831220416.

The previous prime is 2101201967. The next prime is 2101202029. The reversal of 2101202012 is 2102021012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101201984 and 2101202002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44438 + ... + 78594.

It is an arithmetic number, because the mean of its divisors is an integer number (94845380).

Almost surely, 2^2101202012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101202012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2276289120).

2101202012 is an abundant number, since it is smaller than the sum of its proper divisors (2451376228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101202012 is a wasteful number, since it uses less digits than its factorization.

2101202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34207 (or 34179 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2101202012 is about 45838.8700995127. The cubic root of 2101202012 is about 1280.8234471987.

Adding to 2101202012 its reverse (2102021012), we get a palindrome (4203223024).

The spelling of 2101202012 in words is "two billion, one hundred one million, two hundred two thousand, twelve".