1214441021 has 8 divisors (see below), whose sum is σ = 1224905664. Its totient is φ = 1203999840.

The previous prime is 1214441017. The next prime is 1214441023. The reversal of 1214441021 is 1201444121.

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

It is not a de Polignac number, because 1214441021 - 2² = 1214441017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214440984 and 1214441002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214441023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107366 + ... + 118136.

It is an arithmetic number, because the mean of its divisors is an integer number (153113208).

Almost surely, 2^1214441021 is an apocalyptic number.

It is an amenable number.

1214441021 is a deficient number, since it is larger than the sum of its proper divisors (10464643).

1214441021 is a wasteful number, since it uses less digits than its factorization.

1214441021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11731.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1214441021 is about 34848.8309846973. The cubic root of 1214441021 is about 1066.9043260264.

Adding to 1214441021 its reverse (1201444121), we get a palindrome (2415885142).

The spelling of 1214441021 in words is "one billion, two hundred fourteen million, four hundred forty-one thousand, twenty-one".