1214010021 has 8 divisors (see below), whose sum is σ = 1849920064. Its totient is φ = 693720000.

The previous prime is 1214009947. The next prime is 1214010023. The reversal of 1214010021 is 1200104121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1214010021 - 2⁷ = 1214009893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214009979 and 1214010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214010023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28904980 + ... + 28905021.

It is an arithmetic number, because the mean of its divisors is an integer number (231240008).

Almost surely, 2^1214010021 is an apocalyptic number.

It is an amenable number.

1214010021 is a deficient number, since it is larger than the sum of its proper divisors (635910043).

1214010021 is an equidigital number, since it uses as much as digits as its factorization.

1214010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57810011.

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

The square root of 1214010021 is about 34842.6465843225. The cubic root of 1214010021 is about 1066.7780978097.

Adding to 1214010021 its reverse (1200104121), we get a palindrome (2414114142).

The spelling of 1214010021 in words is "one billion, two hundred fourteen million, ten thousand, twenty-one".