30002101221 has 8 divisors (see below), whose sum is σ = 42108212320. Its totient is φ = 18948695472.

The previous prime is 30002101219. The next prime is 30002101223. The reversal of 30002101221 is 12210120003.

It is an interprime number because it is at equal distance from previous prime (30002101219) and next prime (30002101223).

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

It is not a de Polignac number, because 30002101221 - 2¹ = 30002101219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30002101197 and 30002101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002101223) 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, 263176270 + ... + 263176383.

It is an arithmetic number, because the mean of its divisors is an integer number (5263526540).

Almost surely, 2^30002101221 is an apocalyptic number.

It is an amenable number.

30002101221 is a deficient number, since it is larger than the sum of its proper divisors (12106111099).

30002101221 is a wasteful number, since it uses less digits than its factorization.

30002101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526352675.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30002101221 its reverse (12210120003), we get a palindrome (42212221224).

The spelling of 30002101221 in words is "thirty billion, two million, one hundred one thousand, two hundred twenty-one".