1121222210 has 32 divisors (see below), whose sum is σ = 2043159552. Its totient is φ = 442964800.

The previous prime is 1121222209. The next prime is 1121222213. The reversal of 1121222210 is 122221211.

It is not an unprimeable number, because it can be changed into a prime (1121222213) 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, 506927 + ... + 509133.

It is an arithmetic number, because the mean of its divisors is an integer number (63848736).

Almost surely, 2^1121222210 is an apocalyptic number.

1121222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121222210 is a deficient number, since it is larger than the sum of its proper divisors (921937342).

1121222210 is a wasteful number, since it uses less digits than its factorization.

1121222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1121222210 is about 33484.6563368956. The cubic root of 1121222210 is about 1038.8764400799.

Adding to 1121222210 its reverse (122221211), we get a palindrome (1243443421).

Subtracting from 1121222210 its reverse (122221211), we obtain a palindrome (999000999).

The spelling of 1121222210 in words is "one billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred ten".