310142221 has 8 divisors (see below), whose sum is σ = 312922400. Its totient is φ = 307370160.

The previous prime is 310142201. The next prime is 310142227. The reversal of 310142221 is 122241013.

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

It is a cyclic number.

It is not a de Polignac number, because 310142221 - 2⁷ = 310142093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310142195 and 310142204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310142227) 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, 94435 + ... + 97663.

It is an arithmetic number, because the mean of its divisors is an integer number (39115300).

Almost surely, 2^310142221 is an apocalyptic number.

It is an amenable number.

310142221 is a deficient number, since it is larger than the sum of its proper divisors (2780179).

310142221 is a wasteful number, since it uses less digits than its factorization.

310142221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 310142221 is about 17610.8552035385. The cubic root of 310142221 is about 676.8934280353.

Adding to 310142221 its reverse (122241013), we get a palindrome (432383234).

The spelling of 310142221 in words is "three hundred ten million, one hundred forty-two thousand, two hundred twenty-one".