1121210021210 has 32 divisors (see below), whose sum is σ = 2025860403600. Its totient is φ = 446778657792.

The previous prime is 1121210021177. The next prime is 1121210021213. The reversal of 1121210021210 is 121200121211.

It can be written as a sum of positive squares in 8 ways, for example, as 136409819569 + 984800201641 = 369337^2 + 992371^2 .

It is a super-2 number, since 2×1121210021210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121210021213) 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, 4796162 + ... + 5024498.

Almost surely, 2^{1121210021210} is an apocalyptic number.

1121210021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121210021210 is a deficient number, since it is larger than the sum of its proper divisors (904650382390).

1121210021210 is a wasteful number, since it uses less digits than its factorization.

1121210021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230210.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1121210021210 its reverse (121200121211), we get a palindrome (1242410142421).

The spelling of 1121210021210 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, twenty-one thousand, two hundred ten".