2011211010 has 48 divisors (see below), whose sum is σ = 5536749816. Its totient is φ = 504774144.

The previous prime is 2011210997. The next prime is 2011211117. The reversal of 2011211010 is 101121102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2001041289 + 10169721 = 44733^2 + 3189^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2011210983 and 2011211001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 655729 + ... + 658788.

Almost surely, 2^2011211010 is an apocalyptic number.

2011211010 is an abundant number, since it is smaller than the sum of its proper divisors (3525538806).

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

2011211010 is a wasteful number, since it uses less digits than its factorization.

2011211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314547 (or 1314544 counting only the distinct ones).

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

The square root of 2011211010 is about 44846.5272903042. The cubic root of 2011211010 is about 1262.2708293635.

Adding to 2011211010 its reverse (101121102), we get a palindrome (2112332112).

The spelling of 2011211010 in words is "two billion, eleven million, two hundred eleven thousand, ten".