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121030020222 = 23109332355691
BaseRepresentation
bin111000010110111110…
…0111000110001111110
3102120101210100001121120
41300231330320301332
53440332141121342
6131333405211410
711513144124546
oct1605574706176
9376353301546
10121030020222
1147368322601
121b558860b66
13b54a7057a7
145c0206a326
153235616aec
hex1c2df38c7e

121030020222 has 32 divisors (see below), whose sum is σ = 244358674560. Its totient is φ = 39960470880.

The previous prime is 121030020179. The next prime is 121030020227. The reversal of 121030020222 is 222020030121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030020227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145397 + ... + 2201087.

It is an arithmetic number, because the mean of its divisors is an integer number (7636208580).

Almost surely, 2121030020222 is an apocalyptic number.

121030020222 is an abundant number, since it is smaller than the sum of its proper divisors (123328654338).

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

121030020222 is a wasteful number, since it uses less digits than its factorization.

121030020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59128.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 121030020222 its reverse (222020030121), we get a palindrome (343050050343).

The spelling of 121030020222 in words is "one hundred twenty-one billion, thirty million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 109 218 327 654 3323 6646 9969 19938 55691 111382 167073 334146 362207 724414 1086621 2173242 6070319 12140638 18210957 36421914 185061193 370122386 555183579 1110367158 20171670037 40343340074 60515010111 121030020222