30021021201021 has 4 divisors (see below), whose sum is σ = 40028028268032. Its totient is φ = 20014014134012.

The previous prime is 30021021201007. The next prime is 30021021201029. The reversal of 30021021201021 is 12010212012003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30021021201021 - 2¹⁵ = 30021021168253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021021201029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5003503533501 + ... + 5003503533506.

It is an arithmetic number, because the mean of its divisors is an integer number (10007007067008).

Almost surely, 2^{30021021201021} is an apocalyptic number.

It is an amenable number.

30021021201021 is a deficient number, since it is larger than the sum of its proper divisors (10007007067011).

30021021201021 is a wasteful number, since it uses less digits than its factorization.

30021021201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007007067010.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30021021201021 its reverse (12010212012003), we get a palindrome (42031233213024).

The spelling of 30021021201021 in words is "thirty trillion, twenty-one billion, twenty-one million, two hundred one thousand, twenty-one".