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30221203301021 = 46579276488123
BaseRepresentation
bin1101101111100011011000…
…00101100110001010011101
310222000010012121201201220202
412313301230011212022131
512430121011021113041
6144135232405353245
76236260406414315
oct667615405461235
9128003177651822
1030221203301021
1196a1816442127
1234810a3a08825
1313b2b02514b95
147669dd4a2445
153761c9957a9b
hex1b7c6c16629d

30221203301021 has 4 divisors (see below), whose sum is σ = 30221214447072. Its totient is φ = 30221192154972.

The previous prime is 30221203300987. The next prime is 30221203301033. The reversal of 30221203301021 is 12010330212203.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30221203301021 - 210 = 30221203299997 is a prime.

It is a super-2 number, since 2×302212033010212 (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 = 30221203300984 and 30221203301002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221203301041) 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, 1413866 + ... + 7901988.

It is an arithmetic number, because the mean of its divisors is an integer number (7555303611768).

Almost surely, 230221203301021 is an apocalyptic number.

It is an amenable number.

30221203301021 is a deficient number, since it is larger than the sum of its proper divisors (11146051).

30221203301021 is an equidigital number, since it uses as much as digits as its factorization.

30221203301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146050.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30221203301021 its reverse (12010330212203), we get a palindrome (42231533513224).

The spelling of 30221203301021 in words is "thirty trillion, two hundred twenty-one billion, two hundred three million, three hundred one thousand, twenty-one".

Divisors: 1 4657927 6488123 30221203301021