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12202000111220 = 225997611935813
BaseRepresentation
bin1011000110001111111111…
…1000011101011001110100
31121012111111100220222002012
42301203333320131121310
53044404144012024340
641541304345303352
72366364636433403
oct261437770353164
947174440828065
1012202000111220
113984925a59187
1214509b5194b58
136a684a1c490a
1430281958763a
15162606c7a565
hexb18ffe1d674

12202000111220 has 24 divisors (see below), whose sum is σ = 25649901579624. Its totient is φ = 4875904550016.

The previous prime is 12202000111199. The next prime is 12202000111237. The reversal of 12202000111220 is 2211100020221.

It can be written as a sum of positive squares in 4 ways, for example, as 5202440944996 + 6999559166224 = 2280886^2 + 2645668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12202000111195 and 12202000111204.

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, 305947967 + ... + 305987846.

It is an arithmetic number, because the mean of its divisors is an integer number (1068745899151).

Almost surely, 212202000111220 is an apocalyptic number.

12202000111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202000111220 is an abundant number, since it is smaller than the sum of its proper divisors (13447901468404).

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

12202000111220 is a wasteful number, since it uses less digits than its factorization.

12202000111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611936819 (or 611936817 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12202000111220 its reverse (2211100020221), we get a palindrome (14413100131441).

Subtracting from 12202000111220 its reverse (2211100020221), we obtain a palindrome (9990900090999).

The spelling of 12202000111220 in words is "twelve trillion, two hundred two billion, one hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 997 1994 3988 4985 9970 19940 611935813 1223871626 2447743252 3059679065 6119358130 12238716260 610100005561 1220200011122 2440400022244 3050500027805 6101000055610 12202000111220