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2221202130220 = 225315216876361
BaseRepresentation
bin100000010100101001111…
…101101100010100101100
321212100022101200100100201
4200110221331230110230
5242343010221131340
64420223422203244
7316322313405553
oct40245175542454
97770271610321
102221202130220
11787008772257
122ba598123524
131315c631a118
147971477cd9a
153cba29c979a
hex20529f6c52c

2221202130220 has 48 divisors (see below), whose sum is σ = 4824235535616. Its totient is φ = 858169728000.

The previous prime is 2221202130167. The next prime is 2221202130221. The reversal of 2221202130220 is 220312021222.

It is not an unprimeable number, because it can be changed into a prime (2221202130221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3115161 + ... + 3761200.

It is an arithmetic number, because the mean of its divisors is an integer number (100504906992).

Almost surely, 22221202130220 is an apocalyptic number.

2221202130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221202130220 is an abundant number, since it is smaller than the sum of its proper divisors (2603033405396).

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

2221202130220 is a wasteful number, since it uses less digits than its factorization.

2221202130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876922 (or 6876920 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2221202130220 its reverse (220312021222), we get a palindrome (2441514151442).

The spelling of 2221202130220 in words is "two trillion, two hundred twenty-one billion, two hundred two million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 521 620 1042 2084 2605 5210 10420 16151 32302 64604 80755 161510 323020 6876361 13752722 27505444 34381805 68763610 137527220 213167191 426334382 852668764 1065835955 2131671910 3582584081 4263343820 7165168162 14330336324 17912920405 35825840810 71651681620 111060106511 222120213022 444240426044 555300532555 1110601065110 2221202130220