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12202000121220 = 22357133760399961
BaseRepresentation
bin1011000110001111111111…
…1000011111110110000100
31121012111111100221110210120
42301203333320133312010
53044404144012334340
641541304345421540
72366364636504510
oct261437770376604
947174440843716
1012202000121220
113984925a65748
1214509b519a8b0
136a684a1c9330
1430281958b140
15162606c7d4d0
hexb18ffe1fd84

12202000121220 has 192 divisors, whose sum is σ = 43186456029696. Its totient is φ = 2504907141120.

The previous prime is 12202000121203. The next prime is 12202000121231. The reversal of 12202000121220 is 2212100020221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12202000121220.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29997961 + ... + 30402000.

It is an arithmetic number, because the mean of its divisors is an integer number (224929458488).

Almost surely, 212202000121220 is an apocalyptic number.

12202000121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202000121220 is an abundant number, since it is smaller than the sum of its proper divisors (30984455908476).

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

12202000121220 is a wasteful number, since it uses less digits than its factorization.

12202000121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60400030 (or 60400028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12202000121220 its reverse (2212100020221), we get a palindrome (14414100141441).

The spelling of 12202000121220 in words is "twelve trillion, two hundred two billion, one hundred twenty-one thousand, two hundred twenty".