2067757221221 has 16 divisors (see below), whose sum is σ = 2087753232384. Its totient is φ = 2047821842304.

The previous prime is 2067757221163. The next prime is 2067757221247. The reversal of 2067757221221 is 1221227577602.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2067757221221 - 2⁶ = 2067757221157 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 (2067757221821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361682855 + ... + 361688571.

It is an arithmetic number, because the mean of its divisors is an integer number (130484577024).

Almost surely, 2^{2067757221221} is an apocalyptic number.

It is an amenable number.

2067757221221 is a deficient number, since it is larger than the sum of its proper divisors (19996011163).

2067757221221 is a wasteful number, since it uses less digits than its factorization.

2067757221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10420.

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 2067757221221 in words is "two trillion, sixty-seven billion, seven hundred fifty-seven million, two hundred twenty-one thousand, two hundred twenty-one".