1212110120 has 64 divisors (see below), whose sum is σ = 3064763520. Its totient is φ = 428085504.

The previous prime is 1212110087. The next prime is 1212110153. The reversal of 1212110120 is 210112121.

It is an interprime number because it is at equal distance from previous prime (1212110087) and next prime (1212110153).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38714 + ... + 62633.

It is an arithmetic number, because the mean of its divisors is an integer number (47886930).

Almost surely, 2^1212110120 is an apocalyptic number.

1212110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212110120 is an abundant number, since it is smaller than the sum of its proper divisors (1852653400).

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

1212110120 is a wasteful number, since it uses less digits than its factorization.

1212110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101394 (or 101390 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1212110120 is about 34815.3718923122. The cubic root of 1212110120 is about 1066.2213119112.

Adding to 1212110120 its reverse (210112121), we get a palindrome (1422222241).

The spelling of 1212110120 in words is "one billion, two hundred twelve million, one hundred ten thousand, one hundred twenty".