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121030110222 = 23728310182577
BaseRepresentation
bin111000010110111110…
…1001110110000001110
3102120101210111122001220
41300231331032300032
53440332202011342
6131333411144210
711513144651130
oct1605575166016
9376353448056
10121030110222
114736838418a
121b5588a5066
13b54a737748
145c02091050
1532356335ec
hex1c2df4ec0e

121030110222 has 32 divisors (see below), whose sum is σ = 277617806592. Its totient is φ = 34457837184.

The previous prime is 121030110191. The next prime is 121030110287. The reversal of 121030110222 is 222011030121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5079403 + ... + 5103174.

It is an arithmetic number, because the mean of its divisors is an integer number (8675556456).

Almost surely, 2121030110222 is an apocalyptic number.

121030110222 is an abundant number, since it is smaller than the sum of its proper divisors (156587696370).

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

121030110222 is a wasteful number, since it uses less digits than its factorization.

121030110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182872.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121030110222 its reverse (222011030121), we get a palindrome (343041140343).

The spelling of 121030110222 in words is "one hundred twenty-one billion, thirty million, one hundred ten thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 283 566 849 1698 1981 3962 5943 11886 10182577 20365154 30547731 61095462 71278039 142556078 213834117 427668234 2881669291 5763338582 8645007873 17290015746 20171685037 40343370074 60515055111 121030110222