22011211210 has 32 divisors (see below), whose sum is σ = 42973982352. Its totient is φ = 8084459520.

The previous prime is 22011211199. The next prime is 22011211231. The reversal of 22011211210 is 1211211022.

It can be written as a sum of positive squares in 8 ways, for example, as 7444410961 + 14566800249 = 86281^2 + 120693^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572027 + ... + 1585966.

Almost surely, 2^22011211210 is an apocalyptic number.

22011211210 is a deficient number, since it is larger than the sum of its proper divisors (20962771142).

22011211210 is a wasteful number, since it uses less digits than its factorization.

22011211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158058.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22011211210 its reverse (1211211022), we get a palindrome (23222422232).

The spelling of 22011211210 in words is "twenty-two billion, eleven million, two hundred eleven thousand, two hundred ten".