1214068021 has 4 divisors (see below), whose sum is σ = 1214305344. Its totient is φ = 1213830700.

The previous prime is 1214067997. The next prime is 1214068027. The reversal of 1214068021 is 1208604121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1214068021 - 2⁷ = 1214067893 is a prime.

It is a super-2 number, since 2×1214068021² = 2947922319229712882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214068027) 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, 110815 + ... + 121276.

It is an arithmetic number, because the mean of its divisors is an integer number (303576336).

Almost surely, 2^1214068021 is an apocalyptic number.

It is an amenable number.

1214068021 is a deficient number, since it is larger than the sum of its proper divisors (237323).

1214068021 is an equidigital number, since it uses as much as digits as its factorization.

1214068021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237322.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1214068021 is about 34843.4788877345. The cubic root of 1214068021 is about 1066.7950861770.

The spelling of 1214068021 in words is "one billion, two hundred fourteen million, sixty-eight thousand, twenty-one".