1210105120 has 48 divisors (see below), whose sum is σ = 3267286848. Its totient is φ = 414892800.

The previous prime is 1210105109. The next prime is 1210105121. The reversal of 1210105120 is 215010121.

It is a self number, because there is not a number n which added to its sum of digits gives 1210105120.

It is not an unprimeable number, because it can be changed into a prime (1210105121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539106 + ... + 541345.

It is an arithmetic number, because the mean of its divisors is an integer number (68068476).

Almost surely, 2^1210105120 is an apocalyptic number.

1210105120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210105120 is an abundant number, since it is smaller than the sum of its proper divisors (2057181728).

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

1210105120 is a wasteful number, since it uses less digits than its factorization.

1210105120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080473 (or 1080465 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1210105120 is about 34786.5652227983. The cubic root of 1210105120 is about 1065.6330943048.

Adding to 1210105120 its reverse (215010121), we get a palindrome (1425115241).

The spelling of 1210105120 in words is "one billion, two hundred ten million, one hundred five thousand, one hundred twenty".