11221022221210 has 16 divisors (see below), whose sum is σ = 20690470242792. Its totient is φ = 4378935500800.

The previous prime is 11221022221099. The next prime is 11221022221229. The reversal of 11221022221210 is 1212222012211.

It can be written as a sum of positive squares in 4 ways, for example, as 4729976872201 + 6491045349009 = 2174851^2 + 2547753^2 .

It is a super-2 number, since 2×11221022221210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13684173031 + ... + 13684173850.

Almost surely, 2^{11221022221210} is an apocalyptic number.

11221022221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221022221210 is a deficient number, since it is larger than the sum of its proper divisors (9469448021582).

11221022221210 is a wasteful number, since it uses less digits than its factorization.

11221022221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27368346929.

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

Adding to 11221022221210 its reverse (1212222012211), we get a palindrome (12433244233421).

The spelling of 11221022221210 in words is "eleven trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, two hundred ten".