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21201101122 = 250944514679
BaseRepresentation
bin10011101111101011…
…110010000101000010
32000201112121112020111
4103233223302011002
5321404440213442
613423433101534
71350245246305
oct235753620502
960645545214
1021201101122
118a9a518083
1241382578aa
131ccb496366
141051a20b3c
15841422b17
hex4efaf2142

21201101122 has 16 divisors (see below), whose sum is σ = 31878100800. Its totient is φ = 10575086800.

The previous prime is 21201101111. The next prime is 21201101143. The reversal of 21201101122 is 22110110212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4528779 + ... + 4533457.

It is an arithmetic number, because the mean of its divisors is an integer number (1992381300).

Almost surely, 221201101122 is an apocalyptic number.

21201101122 is a deficient number, since it is larger than the sum of its proper divisors (10676999678).

21201101122 is a wasteful number, since it uses less digits than its factorization.

21201101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9641.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21201101122 its reverse (22110110212), we get a palindrome (43311211334).

The spelling of 21201101122 in words is "twenty-one billion, two hundred one million, one hundred one thousand, one hundred twenty-two".

Divisors: 1 2 509 1018 4451 4679 8902 9358 2265559 2381611 4531118 4763222 20826229 41652458 10600550561 21201101122