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12202121120202 = 23213379137587907
BaseRepresentation
bin1011000110010000011100…
…0110000100100111001010
31121012111210210121212012100
42301210013012010213022
53044404421001321302
641541324351054230
72366400636126306
oct261440706044712
947174723555170
1012202121120202
11398498829a002
121450a29811376
136a68692b2b70
1430282b686d06
151626126ced1c
hexb19071849ca

12202121120202 has 48 divisors (see below), whose sum is σ = 28546739151840. Its totient is φ = 3744592449696.

The previous prime is 12202121120191. The next prime is 12202121120219. The reversal of 12202121120202 is 20202112120221.

It is a happy number.

12202121120202 is a `hidden beast` number, since 1 + 220 + 2 + 121 + 120 + 202 = 666.

It is a super-2 number, since 2×122021211202022 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68705268 + ... + 68882639.

It is an arithmetic number, because the mean of its divisors is an integer number (594723732330).

Almost surely, 212202121120202 is an apocalyptic number.

12202121120202 is an abundant number, since it is smaller than the sum of its proper divisors (16344618031638).

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

12202121120202 is a wasteful number, since it uses less digits than its factorization.

12202121120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137588307 (or 137588304 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12202121120202 its reverse (20202112120221), we get a palindrome (32404233240423).

The spelling of 12202121120202 in words is "twelve trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 379 758 1137 2274 3411 4927 6822 9854 14781 29562 44343 88686 137587907 275175814 412763721 825527442 1238291163 1788642791 2476582326 3577285582 5365928373 10731856746 16097785119 32195570238 52145816753 104291633506 156437450259 312874900518 469312350777 677895617789 938624701554 1355791235578 2033686853367 4067373706734 6101060560101 12202121120202