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122330421020 = 22529210914519
BaseRepresentation
bin111000111101101110…
…1100001011100011100
3102200202102021021011002
41301323131201130130
54001013041433040
6132110421245432
711560314264533
oct1617335413434
9380672237132
10122330421020
1147975373a05
121b860263878
13b6c6c51012
145cc6a5331a
1532ae885a15
hex1c7b76171c

122330421020 has 24 divisors (see below), whose sum is σ = 265752295200. Its totient is φ = 47244852032.

The previous prime is 122330421019. The next prime is 122330421043. The reversal of 122330421020 is 20124033221.

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 = 122330420983 and 122330421001.

It is a congruent number.

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, 105456680 + ... + 105457839.

It is an arithmetic number, because the mean of its divisors is an integer number (11073012300).

Almost surely, 2122330421020 is an apocalyptic number.

122330421020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122330421020 is an abundant number, since it is smaller than the sum of its proper divisors (143421874180).

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

122330421020 is a wasteful number, since it uses less digits than its factorization.

122330421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210914557 (or 210914555 counting only the distinct ones).

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

Adding to 122330421020 its reverse (20124033221), we get a palindrome (142454454241).

The spelling of 122330421020 in words is "one hundred twenty-two billion, three hundred thirty million, four hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 210914519 421829038 843658076 1054572595 2109145190 4218290380 6116521051 12233042102 24466084204 30582605255 61165210510 122330421020