2111201010 has 96 divisors (see below), whose sum is σ = 5738084352. Its totient is φ = 558472320.

The previous prime is 2111201009. The next prime is 2111201011. The reversal of 2111201010 is 101021112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2111201009) and next prime (2111201011).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2111200983 and 2111201001.

It is not an unprimeable number, because it can be changed into a prime (2111201011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 305190 + ... + 312030.

It is an arithmetic number, because the mean of its divisors is an integer number (59771712).

Almost surely, 2^2111201010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111201010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2869042176).

2111201010 is an abundant number, since it is smaller than the sum of its proper divisors (3626883342).

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

2111201010 is a wasteful number, since it uses less digits than its factorization.

2111201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6990 (or 6978 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2111201010 is about 45947.8074558515. The cubic root of 2111201010 is about 1282.8519194290.

Adding to 2111201010 its reverse (101021112), we get a palindrome (2212222122).

The spelling of 2111201010 in words is "two billion, one hundred eleven million, two hundred one thousand, ten".