1214210101 has 4 divisors (see below), whose sum is σ = 1307610892. Its totient is φ = 1120809312.

The previous prime is 1214210099. The next prime is 1214210117. The reversal of 1214210101 is 1010124121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 606636900 + 607573201 = 24630^2 + 24649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214210101 - 2¹ = 1214210099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 93400777 = 1214210101 / (1 + 2 + 1 + 4 + 2 + 1 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214210141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46700376 + ... + 46700401.

It is an arithmetic number, because the mean of its divisors is an integer number (326902723).

Almost surely, 2^1214210101 is an apocalyptic number.

It is an amenable number.

1214210101 is a deficient number, since it is larger than the sum of its proper divisors (93400791).

1214210101 is an equidigital number, since it uses as much as digits as its factorization.

1214210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93400790.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1214210101 is about 34845.5176600951. The cubic root of 1214210101 is about 1066.8366995328.

Adding to 1214210101 its reverse (1010124121), we get a palindrome (2224334222).

The spelling of 1214210101 in words is "one billion, two hundred fourteen million, two hundred ten thousand, one hundred one".