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122330220212 = 22293104377321
BaseRepresentation
bin111000111101101110…
…0110000011010110100
3102200202101220001200202
41301323130300122310
54001013014021322
6132110413100032
711560312500224
oct1617334603264
9380671801622
10122330220212
1147975247052
121b860187618
13b6c6bb07b5
145cc6a00084
1532ae846292
hex1c7b7306b4

122330220212 has 12 divisors (see below), whose sum is σ = 214808528676. Its totient is φ = 60956354880.

The previous prime is 122330220203. The next prime is 122330220241. The reversal of 122330220212 is 212022033221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 102096864676 + 20233355536 = 319526^2 + 142244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52187489 + ... + 52189832.

It is an arithmetic number, because the mean of its divisors is an integer number (17900710723).

Almost surely, 2122330220212 is an apocalyptic number.

It is an amenable number.

122330220212 is a deficient number, since it is larger than the sum of its proper divisors (92478308464).

122330220212 is a wasteful number, since it uses less digits than its factorization.

122330220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104377618 (or 104377616 counting only the distinct ones).

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

Adding to 122330220212 its reverse (212022033221), we get a palindrome (334352253433).

The spelling of 122330220212 in words is "one hundred twenty-two billion, three hundred thirty million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 293 586 1172 104377321 208754642 417509284 30582555053 61165110106 122330220212