30020011221021 has 64 divisors (see below), whose sum is σ = 41568041894400. Its totient is φ = 19260305326080.

The previous prime is 30020011221019. The next prime is 30020011221029. The reversal of 30020011221021 is 12012211002003.

It is not a de Polignac number, because 30020011221021 - 2¹ = 30020011221019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020011221029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1800508141 + ... + 1800524813.

It is an arithmetic number, because the mean of its divisors is an integer number (649500654600).

Almost surely, 2^{30020011221021} is an apocalyptic number.

It is an amenable number.

30020011221021 is a deficient number, since it is larger than the sum of its proper divisors (11548030673379).

30020011221021 is a wasteful number, since it uses less digits than its factorization.

30020011221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17606.

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

Adding to 30020011221021 its reverse (12012211002003), we get a palindrome (42032222223024).

The spelling of 30020011221021 in words is "thirty trillion, twenty billion, eleven million, two hundred twenty-one thousand, twenty-one".