22111110221210 has 16 divisors (see below), whose sum is σ = 39806859388392. Its totient is φ = 8842919424000.

The previous prime is 22111110221129. The next prime is 22111110221251. The reversal of 22111110221210 is 1212201111122.

It can be written as a sum of positive squares in 4 ways, for example, as 20850648195001 + 1260462026209 = 4566251^2 + 1122703^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190522151 + ... + 190638170.

Almost surely, 2^{22111110221210} is an apocalyptic number.

22111110221210 is a deficient number, since it is larger than the sum of its proper divisors (17695749167182).

22111110221210 is a wasteful number, since it uses less digits than its factorization.

22111110221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381166129.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22111110221210 its reverse (1212201111122), we get a palindrome (23323311332332).

The spelling of 22111110221210 in words is "twenty-two trillion, one hundred eleven billion, one hundred ten million, two hundred twenty-one thousand, two hundred ten".