30201220233121 has 24 divisors (see below), whose sum is σ = 36373744140840. Its totient is φ = 24973300800000.

The previous prime is 30201220233073. The next prime is 30201220233161. The reversal of 30201220233121 is 12133202210203.

It can be written as a sum of positive squares in 4 ways, for example, as 3587383733521 + 26613836499600 = 1894039^2 + 5158860^2 .

It is not a de Polignac number, because 30201220233121 - 2⁷ = 30201220232993 is a prime.

It is a super-2 number, since 2×30201220233121² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30201220233092 and 30201220233101.

It is not an unprimeable number, because it can be changed into a prime (30201220233161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7141630 + ... + 10554871.

It is an arithmetic number, because the mean of its divisors is an integer number (1515572672535).

Almost surely, 2^{30201220233121} is an apocalyptic number.

It is an amenable number.

30201220233121 is a deficient number, since it is larger than the sum of its proper divisors (6172523907719).

30201220233121 is a wasteful number, since it uses less digits than its factorization.

30201220233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17697745 (or 17697738 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 30201220233121 its reverse (12133202210203), we get a palindrome (42334422443324).

The spelling of 30201220233121 in words is "thirty trillion, two hundred one billion, two hundred twenty million, two hundred thirty-three thousand, one hundred twenty-one".