211220220104 has 32 divisors (see below), whose sum is σ = 397226138400. Its totient is φ = 105293539200.

The previous prime is 211220220049. The next prime is 211220220121. The reversal of 211220220104 is 401022022112.

It is a super-2 number, since 2×211220220104² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6222779 + ... + 6256629.

It is an arithmetic number, because the mean of its divisors is an integer number (12413316825).

Almost surely, 2^211220220104 is an apocalyptic number.

It is an amenable number.

211220220104 is a deficient number, since it is larger than the sum of its proper divisors (186005918296).

211220220104 is a wasteful number, since it uses less digits than its factorization.

211220220104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36173 (or 36169 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211220220104 its reverse (401022022112), we get a palindrome (612242242216).

The spelling of 211220220104 in words is "two hundred eleven billion, two hundred twenty million, two hundred twenty thousand, one hundred four".