1214204433021 has 6 divisors (see below), whose sum is σ = 1753850847710. Its totient is φ = 809469622008.

The previous prime is 1214204433019. The next prime is 1214204433041. The reversal of 1214204433021 is 1203344024121.

1214204433021 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 204 + 433 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1195991580996 + 18212852025 = 1093614^2 + 134955^2 .

It is not a de Polignac number, because 1214204433021 - 2¹ = 1214204433019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214204433041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67455801826 + ... + 67455801843.

Almost surely, 2^{1214204433021} is an apocalyptic number.

It is an amenable number.

1214204433021 is a deficient number, since it is larger than the sum of its proper divisors (539646414689).

1214204433021 is a wasteful number, since it uses less digits than its factorization.

1214204433021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134911603675 (or 134911603672 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1214204433021 its reverse (1203344024121), we get a palindrome (2417548457142).

The spelling of 1214204433021 in words is "one trillion, two hundred fourteen billion, two hundred four million, four hundred thirty-three thousand, twenty-one".