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30030221202121 = 723318412152791
BaseRepresentation
bin1101101001111111101001…
…01010101101001011001001
310221022212020202012220010101
412310333310222231023021
512414003343111431441
6143511405420245401
76216416606356210
oct664776452551311
9127285222186111
1030030221202121
119628821a89558
1234500843a0861
13139aab75a2c7a
1475b682d36077
1537124d049231
hex1b4ff4aad2c9

30030221202121 has 8 divisors (see below), whose sum is σ = 34467550026624. Its totient is φ = 25629716683680.

The previous prime is 30030221202043. The next prime is 30030221202199. The reversal of 30030221202121 is 12120212203003.

It is an interprime number because it is at equal distance from previous prime (30030221202043) and next prime (30030221202199).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30030221202121 - 231 = 30028073718473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30030221302121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9206074765 + ... + 9206078026.

It is an arithmetic number, because the mean of its divisors is an integer number (4308443753328).

Almost surely, 230030221202121 is an apocalyptic number.

It is an amenable number.

30030221202121 is a deficient number, since it is larger than the sum of its proper divisors (4437328824503).

30030221202121 is a wasteful number, since it uses less digits than its factorization.

30030221202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412153031.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30030221202121 its reverse (12120212203003), we get a palindrome (42150433405124).

The spelling of 30030221202121 in words is "thirty trillion, thirty billion, two hundred twenty-one million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 7 233 1631 18412152791 128885069537 4290031600303 30030221202121