2101022210 has 32 divisors (see below), whose sum is σ = 4461530112. Its totient is φ = 697112640.

The previous prime is 2101022191. The next prime is 2101022219. The reversal of 2101022210 is 122201012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101022191 and 2101022200.

It is not an unprimeable number, because it can be changed into a prime (2101022219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481937 + ... + 486276.

It is an arithmetic number, because the mean of its divisors is an integer number (139422816).

Almost surely, 2^2101022210 is an apocalyptic number.

2101022210 is an abundant number, since it is smaller than the sum of its proper divisors (2360507902).

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

2101022210 is a wasteful number, since it uses less digits than its factorization.

2101022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968258.

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

The square root of 2101022210 is about 45836.9088181129. The cubic root of 2101022210 is about 1280.7869123668.

Adding to 2101022210 its reverse (122201012), we get a palindrome (2223223222).

The spelling of 2101022210 in words is "two billion, one hundred one million, twenty-two thousand, two hundred ten".