4000030211221 has 8 divisors (see below), whose sum is σ = 4514140677600. Its totient is φ = 3510998304240.

The previous prime is 4000030211201. The next prime is 4000030211297. The reversal of 4000030211221 is 1221120300004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000030211221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000030211195 and 4000030211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000030211201) 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, 6269639511 + ... + 6269640148.

It is an arithmetic number, because the mean of its divisors is an integer number (564267584700).

Almost surely, 2^{4000030211221} is an apocalyptic number.

It is an amenable number.

4000030211221 is a deficient number, since it is larger than the sum of its proper divisors (514110466379).

4000030211221 is a wasteful number, since it uses less digits than its factorization.

4000030211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539279699.

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

Adding to 4000030211221 its reverse (1221120300004), we get a palindrome (5221150511225).

The spelling of 4000030211221 in words is "four trillion, thirty million, two hundred eleven thousand, two hundred twenty-one".