11222122021210 has 16 divisors (see below), whose sum is σ = 20209775229000. Its totient is φ = 4486636454976.

The previous prime is 11222122021183. The next prime is 11222122021213. The reversal of 11222122021210 is 1212022122211.

It can be written as a sum of positive squares in 4 ways, for example, as 10701907476129 + 520214545081 = 3271377^2 + 721259^2 .

It is not an unprimeable number, because it can be changed into a prime (11222122021213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276522885 + ... + 276563464.

Almost surely, 2^{11222122021210} is an apocalyptic number.

11222122021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11222122021210 is a deficient number, since it is larger than the sum of its proper divisors (8987653207790).

11222122021210 is a wasteful number, since it uses less digits than its factorization.

11222122021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553088385.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11222122021210 its reverse (1212022122211), we get a palindrome (12434144143421).

The spelling of 11222122021210 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-one thousand, two hundred ten".