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122331213340 = 2257873794381
BaseRepresentation
bin111000111101110000…
…0100010111000011100
3102200202110202112000021
41301323200202320130
54001013242311330
6132110450241524
711560324104520
oct1617340427034
9380673675007
10122331213340
1147975865216
121b8605862a4
13b6c716a84b
145cc6bbbd80
1532ae99067a
hex1c7b822e1c

122331213340 has 24 divisors (see below), whose sum is σ = 293594912352. Its totient is φ = 41942130240.

The previous prime is 122331213337. The next prime is 122331213341. The reversal of 122331213340 is 43312133221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122331213341) 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, 436897051 + ... + 436897330.

It is an arithmetic number, because the mean of its divisors is an integer number (12233121348).

Almost surely, 2122331213340 is an apocalyptic number.

122331213340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122331213340 is an abundant number, since it is smaller than the sum of its proper divisors (171263699012).

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

122331213340 is a wasteful number, since it uses less digits than its factorization.

122331213340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873794397 (or 873794395 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 122331213340 its reverse (43312133221), we get a palindrome (165643346561).

The spelling of 122331213340 in words is "one hundred twenty-two billion, three hundred thirty-one million, two hundred thirteen thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 873794381 1747588762 3495177524 4368971905 6116560667 8737943810 12233121334 17475887620 24466242668 30582803335 61165606670 122331213340