30213354142221 has 16 divisors (see below), whose sum is σ = 42654257881344. Its totient is φ = 18957349407744.

The previous prime is 30213354142189. The next prime is 30213354142241. The reversal of 30213354142221 is 12224145331203.

It is a happy number.

It is not a de Polignac number, because 30213354142221 - 2⁵ = 30213354142189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213354142241) 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, 38087580 + ... + 38872746.

It is an arithmetic number, because the mean of its divisors is an integer number (2665891117584).

Almost surely, 2^{30213354142221} is an apocalyptic number.

It is an amenable number.

30213354142221 is a deficient number, since it is larger than the sum of its proper divisors (12440903739123).

30213354142221 is a wasteful number, since it uses less digits than its factorization.

30213354142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539700.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 30213354142221 its reverse (12224145331203), we get a palindrome (42437499473424).

The spelling of 30213354142221 in words is "thirty trillion, two hundred thirteen billion, three hundred fifty-four million, one hundred forty-two thousand, two hundred twenty-one".