1211022212110 has 16 divisors (see below), whose sum is σ = 2207432894400. Its totient is φ = 478277126496.

The previous prime is 1211022212069. The next prime is 1211022212117. The reversal of 1211022212110 is 112122201121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211022212117) 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, 766468965 + ... + 766470544.

It is an arithmetic number, because the mean of its divisors is an integer number (137964555900).

Almost surely, 2^{1211022212110} is an apocalyptic number.

1211022212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211022212110 is a deficient number, since it is larger than the sum of its proper divisors (996410682290).

1211022212110 is a wasteful number, since it uses less digits than its factorization.

1211022212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532939595.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211022212110 its reverse (112122201121), we get a palindrome (1323144413231).

The spelling of 1211022212110 in words is "one trillion, two hundred eleven billion, twenty-two million, two hundred twelve thousand, one hundred ten".