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122223131020 = 22510359331617
BaseRepresentation
bin111000111010100010…
…0001111100110001100
3102200110221101100221101
41301311010033212030
54000303110143040
6132052025512444
711554542320644
oct1616504174614
9380427340841
10122223131020
114791a853391
121b830342724
13b6aa957303
145cb66c5524
1532a524109a
hex1c7510f98c

122223131020 has 24 divisors (see below), whose sum is σ = 259160507424. Its totient is φ = 48414598656.

The previous prime is 122223130999. The next prime is 122223131021. The reversal of 122223131020 is 20131322221.

It is not an unprimeable number, because it can be changed into a prime (122223131021) 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, 29663749 + ... + 29667868.

It is an arithmetic number, because the mean of its divisors is an integer number (10798354476).

Almost surely, 2122223131020 is an apocalyptic number.

122223131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122223131020 is an abundant number, since it is smaller than the sum of its proper divisors (136937376404).

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

122223131020 is a wasteful number, since it uses less digits than its factorization.

122223131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59331729 (or 59331727 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122223131020 its reverse (20131322221), we get a palindrome (142354453241).

The spelling of 122223131020 in words is "one hundred twenty-two billion, two hundred twenty-three million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 59331617 118663234 237326468 296658085 593316170 1186632340 6111156551 12222313102 24444626204 30555782755 61111565510 122223131020