1314212121 has 40 divisors (see below), whose sum is σ = 2100560000. Its totient is φ = 816363360.

The previous prime is 1314212099. The next prime is 1314212131. The reversal of 1314212121 is 1212124131.

1314212121 is a `hidden beast` number, since 1 + 31 + 421 + 212 + 1 = 666.

It is not a de Polignac number, because 1314212121 - 2⁵ = 1314212089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1314212094 and 1314212103.

It is not an unprimeable number, because it can be changed into a prime (1314212131) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 86880 + ... + 100878.

It is an arithmetic number, because the mean of its divisors is an integer number (52514000).

Almost surely, 2^1314212121 is an apocalyptic number.

It is an amenable number.

1314212121 is a deficient number, since it is larger than the sum of its proper divisors (786347879).

1314212121 is a wasteful number, since it uses less digits than its factorization.

1314212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14091 (or 14082 counting only the distinct ones).

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

The square root of 1314212121 is about 36252.0636791894. The cubic root of 1314212121 is about 1095.3556585352.

Adding to 1314212121 its reverse (1212124131), we get a palindrome (2526336252).

The spelling of 1314212121 in words is "one billion, three hundred fourteen million, two hundred twelve thousand, one hundred twenty-one".