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122303122220 = 22513146680581
BaseRepresentation
bin111000111100111010…
…1011000101100101100
3102200200111220100020102
41301321311120230230
54000434044402340
6132104004210232
711556533246306
oct1617165305454
9380614810212
10122303122220
1147960a18a14
121b853099978
13b6c13b3696
145cc3188976
1532ac292215
hex1c79d58b2c

122303122220 has 24 divisors (see below), whose sum is σ = 258797146608. Its totient is φ = 48547803200.

The previous prime is 122303122181. The next prime is 122303122367. The reversal of 122303122220 is 22221303221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122303122192 and 122303122201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23337671 + ... + 23342910.

It is an arithmetic number, because the mean of its divisors is an integer number (10783214442).

Almost surely, 2122303122220 is an apocalyptic number.

122303122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122303122220 is an abundant number, since it is smaller than the sum of its proper divisors (136494024388).

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

122303122220 is a wasteful number, since it uses less digits than its factorization.

122303122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46680721 (or 46680719 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 122303122220 its reverse (22221303221), we get a palindrome (144524425441).

The spelling of 122303122220 in words is "one hundred twenty-two billion, three hundred three million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 46680581 93361162 186722324 233402905 466805810 933611620 6115156111 12230312222 24460624444 30575780555 61151561110 122303122220