1210121330 has 16 divisors (see below), whose sum is σ = 2376238464. Its totient is φ = 440044080.

The previous prime is 1210121327. The next prime is 1210121347. The reversal of 1210121330 is 331210121.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 5500442 + ... + 5500661.

It is an arithmetic number, because the mean of its divisors is an integer number (148514904).

Almost surely, 2^1210121330 is an apocalyptic number.

1210121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210121330 is a deficient number, since it is larger than the sum of its proper divisors (1166117134).

1210121330 is a wasteful number, since it uses less digits than its factorization.

1210121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001121.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1210121330 is about 34786.7982142651. The cubic root of 1210121330 is about 1065.6378525237.

Adding to 1210121330 its reverse (331210121), we get a palindrome (1541331451).

The spelling of 1210121330 in words is "one billion, two hundred ten million, one hundred twenty-one thousand, three hundred thirty".