30221311431020 has 48 divisors (see below), whose sum is σ = 64123565425248. Its totient is φ = 11963054315520.

The previous prime is 30221311431007. The next prime is 30221311431089. The reversal of 30221311431020 is 2013411312203.

It is a super-2 number, since 2×30221311431020² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27242810 + ... + 28330430.

It is an arithmetic number, because the mean of its divisors is an integer number (1335907613026).

Almost surely, 2^{30221311431020} is an apocalyptic number.

It is an amenable number.

30221311431020 is an abundant number, since it is smaller than the sum of its proper divisors (33902253994228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221311431020 is a wasteful number, since it uses less digits than its factorization.

30221311431020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102050 (or 1102048 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30221311431020 its reverse (2013411312203), we get a palindrome (32234722743223).

The spelling of 30221311431020 in words is "thirty trillion, two hundred twenty-one billion, three hundred eleven million, four hundred thirty-one thousand, twenty".