380212221221 has 16 divisors (see below), whose sum is σ = 449759001600. Its totient is φ = 314485479168.

The previous prime is 380212221217. The next prime is 380212221227. The reversal of 380212221221 is 122122212083.

It is a happy number.

It is not a de Polignac number, because 380212221221 - 2² = 380212221217 is a prime.

It is a super-2 number, since 2×380212221221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380212221227) 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, 143636 + ... + 883773.

It is an arithmetic number, because the mean of its divisors is an integer number (28109937600).

Almost surely, 2^380212221221 is an apocalyptic number.

It is an amenable number.

380212221221 is a deficient number, since it is larger than the sum of its proper divisors (69546780379).

380212221221 is a wasteful number, since it uses less digits than its factorization.

380212221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029268.

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 380212221221 in words is "three hundred eighty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".