2067897214221 has 4 divisors (see below), whose sum is σ = 2757196285632. Its totient is φ = 1378598142812.

The previous prime is 2067897214171. The next prime is 2067897214283. The reversal of 2067897214221 is 1224127987602.

It is a happy number.

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 2067897214221 - 2¹³ = 2067897206029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2067897214321) 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, 344649535701 + ... + 344649535706.

It is an arithmetic number, because the mean of its divisors is an integer number (689299071408).

Almost surely, 2^{2067897214221} is an apocalyptic number.

It is an amenable number.

2067897214221 is a deficient number, since it is larger than the sum of its proper divisors (689299071411).

2067897214221 is an equidigital number, since it uses as much as digits as its factorization.

2067897214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689299071410.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 2067897214221 in words is "two trillion, sixty-seven billion, eight hundred ninety-seven million, two hundred fourteen thousand, two hundred twenty-one".