1122121211210 has 32 divisors (see below), whose sum is σ = 2021899905360. Its totient is φ = 448386098688.

The previous prime is 1122121211111. The next prime is 1122121211231. The reversal of 1122121211210 is 121121212211.

It can be written as a sum of positive squares in 8 ways, for example, as 105002569681 + 1017118641529 = 324041^2 + 1008523^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49699484 + ... + 49722056.

Almost surely, 2^{1122121211210} is an apocalyptic number.

1122121211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122121211210 is a deficient number, since it is larger than the sum of its proper divisors (899778694150).

1122121211210 is a wasteful number, since it uses less digits than its factorization.

1122121211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27482.

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

Adding to 1122121211210 its reverse (121121212211), we get a palindrome (1243242423421).

It can be divided in two parts, 1122121 and 211210, that added together give a palindrome (1333331).

The spelling of 1122121211210 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, two hundred ten".