2102211270 has 48 divisors (see below), whose sum is σ = 5703396192. Its totient is φ = 536215680.

The previous prime is 2102211269. The next prime is 2102211271. The reversal of 2102211270 is 721122012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2102211269) and next prime (2102211271).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102211271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505711 + ... + 509850.

It is an arithmetic number, because the mean of its divisors is an integer number (118820754).

Almost surely, 2^2102211270 is an apocalyptic number.

2102211270 is an abundant number, since it is smaller than the sum of its proper divisors (3601184922).

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

2102211270 is a wasteful number, since it uses less digits than its factorization.

2102211270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015597 (or 1015594 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 2102211270 is about 45849.8775352781. The cubic root of 2102211270 is about 1281.0284845043.

Adding to 2102211270 its reverse (721122012), we get a palindrome (2823333282).

The spelling of 2102211270 in words is "two billion, one hundred two million, two hundred eleven thousand, two hundred seventy".