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30220102221 = 310073367407
BaseRepresentation
bin11100001001010000…
…100010101001001101
32220000002110020212020
4130021100202221031
5443342321232341
621514413400353
72116611426201
oct341120425115
986002406766
1030220102221
11118a85070a1
125a347990b9
132b07b6a1ba
141669780b01
15bbd104566
hex709422a4d

30220102221 has 4 divisors (see below), whose sum is σ = 40293469632. Its totient is φ = 20146734812.

The previous prime is 30220102117. The next prime is 30220102223. The reversal of 30220102221 is 12220102203.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 30220102221 - 211 = 30220100173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30220102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220102223) 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, 5036683701 + ... + 5036683706.

It is an arithmetic number, because the mean of its divisors is an integer number (10073367408).

Almost surely, 230220102221 is an apocalyptic number.

It is an amenable number.

30220102221 is a deficient number, since it is larger than the sum of its proper divisors (10073367411).

30220102221 is a wasteful number, since it uses less digits than its factorization.

30220102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073367410.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 30220102221 its reverse (12220102203), we get a palindrome (42440204424).

The spelling of 30220102221 in words is "thirty billion, two hundred twenty million, one hundred two thousand, two hundred twenty-one".

Divisors: 1 3 10073367407 30220102221