1214123112 has 24 divisors (see below), whose sum is σ = 3288250290. Its totient is φ = 404707680.

The previous prime is 1214123111. The next prime is 1214123117. The reversal of 1214123112 is 2113214121.

It can be written as a sum of positive squares in only one way, i.e., 1198959876 + 15163236 = 34626^2 + 3894^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1214123111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8431339 + ... + 8431482.

Almost surely, 2^1214123112 is an apocalyptic number.

1214123112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1214123112 is an abundant number, since it is smaller than the sum of its proper divisors (2074127178).

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

1214123112 is a wasteful number, since it uses less digits than its factorization.

1214123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16862833 (or 16862826 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1214123112 is about 34844.2694284153. The cubic root of 1214123112 is about 1066.8112219888.

Adding to 1214123112 its reverse (2113214121), we get a palindrome (3327337233).

It can be divided in two parts, 12141 and 23112, that added together give a palindrome (35253).

The spelling of 1214123112 in words is "one billion, two hundred fourteen million, one hundred twenty-three thousand, one hundred twelve".