1121121212210 has 32 divisors (see below), whose sum is σ = 2176040160000. Its totient is φ = 414483834240.

The previous prime is 1121121212209. The next prime is 1121121212219. The reversal of 1121121212210 is 122121211211.

It is a super-3 number, since 3×1121121212210³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121121212219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71951210 + ... + 71966789.

It is an arithmetic number, because the mean of its divisors is an integer number (68001255000).

Almost surely, 2^{1121121212210} is an apocalyptic number.

1121121212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121121212210 is a deficient number, since it is larger than the sum of its proper divisors (1054918947790).

1121121212210 is a wasteful number, since it uses less digits than its factorization.

1121121212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143918066.

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

Adding to 1121121212210 its reverse (122121211211), we get a palindrome (1243242423421).

Subtracting from 1121121212210 its reverse (122121211211), we obtain a palindrome (999000000999).

It can be divided in two parts, 1121121 and 212210, that added together give a palindrome (1333331).

The spelling of 1121121212210 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, two hundred ten".