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122102022220 = 22553115190587
BaseRepresentation
bin111000110110111011…
…0010000000001001100
3102200011111111101220021
41301231312100001030
54000031104202340
6132032022031524
711551542031033
oct1615566200114
9380144441807
10122102022220
1147868454572
121b7b78785a4
13b68b8327b9
145ca459b71a
1532997bbe4a
hex1c6dd9004c

122102022220 has 24 divisors (see below), whose sum is σ = 261252253584. Its totient is φ = 47919283776.

The previous prime is 122102022187. The next prime is 122102022227. The reversal of 122102022220 is 22220201221.

It is a junction number, because it is equal to n+sod(n) for n = 122102022194 and 122102022203.

It is not an unprimeable number, because it can be changed into a prime (122102022227) 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, 57594234 + ... + 57596353.

It is an arithmetic number, because the mean of its divisors is an integer number (10885510566).

Almost surely, 2122102022220 is an apocalyptic number.

122102022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122102022220 is an abundant number, since it is smaller than the sum of its proper divisors (139150231364).

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

122102022220 is a wasteful number, since it uses less digits than its factorization.

122102022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115190649 (or 115190647 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 122102022220 its reverse (22220201221), we get a palindrome (144322223441).

The spelling of 122102022220 in words is "one hundred twenty-two billion, one hundred two million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 115190587 230381174 460762348 575952935 1151905870 2303811740 6105101111 12210202222 24420404444 30525505555 61051011110 122102022220