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121211200022 = 211531091635851
BaseRepresentation
bin111000011100011000…
…0000010001000010110
3102120212102020221120112
41300320300002020112
53441220031400042
6131403400403022
711520504125543
oct1607060021026
9376772227515
10121211200022
1147450620680
121b5a9476472
13b579100683
145c1c14dbca
1532464a4982
hex1c38c02216

121211200022 has 64 divisors (see below), whose sum is σ = 205228235520. Its totient is φ = 53222832000.

The previous prime is 121211199983. The next prime is 121211200039. The reversal of 121211200022 is 220002112121.

Adding to 121211200022 its reverse (220002112121), we get a palindrome (341213312143).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20713397 + ... + 20719247.

It is an arithmetic number, because the mean of its divisors is an integer number (3206691180).

Almost surely, 2121211200022 is an apocalyptic number.

121211200022 is a deficient number, since it is larger than the sum of its proper divisors (84017035498).

121211200022 is a wasteful number, since it uses less digits than its factorization.

121211200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189.

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

The spelling of 121211200022 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred thousand, twenty-two".

Divisors: 1 2 11 22 53 106 109 163 218 326 583 1166 1199 1793 2398 3586 5777 5851 8639 11554 11702 17278 17767 35534 63547 64361 95029 127094 128722 190058 195437 310103 390874 620206 637759 941651 953713 1275518 1883302 1907426 3411133 6822266 7015349 10358161 10490843 14030698 20716322 20981686 33801227 50546789 67602454 101093578 103954717 207909434 371813497 556014679 743626994 1112029358 1143501887 2287003774 5509600001 11019200002 60605600011 121211200022