1214210100 has 36 divisors (see below), whose sum is σ = 3513115424. Its totient is φ = 323789280.

The previous prime is 1214210099. The next prime is 1214210117. The reversal of 1214210100 is 10124121.

It is a happy number.

1214210100 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 2023384 + ... + 2023983.

Almost surely, 2^1214210100 is an apocalyptic number.

1214210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214210100 is an abundant number, since it is smaller than the sum of its proper divisors (2298905324).

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

1214210100 is a wasteful number, since it uses less digits than its factorization.

1214210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047384 (or 4047377 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1214210100 is about 34845.5176457461. The cubic root of 1214210100 is about 1066.8366992399.

Adding to 1214210100 its reverse (10124121), we get a palindrome (1224334221).

The spelling of 1214210100 in words is "one billion, two hundred fourteen million, two hundred ten thousand, one hundred".