1211320022110 has 64 divisors (see below), whose sum is σ = 2397839376384. Its totient is φ = 436917196800.

The previous prime is 1211320022083. The next prime is 1211320022111. The reversal of 1211320022110 is 112200231121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211320022111) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 116099454 + ... + 116109886.

It is an arithmetic number, because the mean of its divisors is an integer number (37466240256).

Almost surely, 2^{1211320022110} is an apocalyptic number.

1211320022110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211320022110 is a deficient number, since it is larger than the sum of its proper divisors (1186519354274).

1211320022110 is a wasteful number, since it uses less digits than its factorization.

1211320022110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18889.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1211320022110 its reverse (112200231121), we get a palindrome (1323520253231).

The spelling of 1211320022110 in words is "one trillion, two hundred eleven billion, three hundred twenty million, twenty-two thousand, one hundred ten".