1121211330 has 32 divisors (see below), whose sum is σ = 2701396224. Its totient is φ = 297824256.

The previous prime is 1121211313. The next prime is 1121211347. The reversal of 1121211330 is 331121211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121211313) and next prime (1121211347).

It is a super-2 number, since 2×1121211330² = 2514229693040737800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65002 + ... + 80421.

It is an arithmetic number, because the mean of its divisors is an integer number (84418632).

Almost surely, 2^1121211330 is an apocalyptic number.

1121211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121211330 is an abundant number, since it is smaller than the sum of its proper divisors (1580184894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121211330 is a wasteful number, since it uses less digits than its factorization.

1121211330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145690.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1121211330 is about 33484.4938740307. The cubic root of 1121211330 is about 1038.8730797551.

Adding to 1121211330 its reverse (331121211), we get a palindrome (1452332541).

The spelling of 1121211330 in words is "one billion, one hundred twenty-one million, two hundred eleven thousand, three hundred thirty".