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201121021120 = 2656110303331
BaseRepresentation
bin1011101101001110111…
…1110011110011000000
3201020010110200110101011
42323103233303303000
511243343440133440
6232221013250304
720346652321105
oct2732357636300
9636113613334
10201121021120
1178327633a38
1232b8b033994
1315c7264cc96
149a3cd32aac
155371aad9ea
hex2ed3bf3cc0

201121021120 has 56 divisors (see below), whose sum is σ = 486770617008. Its totient is φ = 79129574400.

The previous prime is 201121021111. The next prime is 201121021159. The reversal of 201121021120 is 21120121102.

It is a self number, because there is not a number n which added to its sum of digits gives 201121021120.

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, 5132146 + ... + 5171185.

Almost surely, 2201121021120 is an apocalyptic number.

201121021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201121021120 is an abundant number, since it is smaller than the sum of its proper divisors (285649595888).

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

201121021120 is a wasteful number, since it uses less digits than its factorization.

201121021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303409 (or 10303399 counting only the distinct ones).

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

Adding to 201121021120 its reverse (21120121102), we get a palindrome (222241142222).

The spelling of 201121021120 in words is "two hundred one billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 61 64 80 122 160 244 305 320 488 610 976 1220 1952 2440 3904 4880 9760 19520 10303331 20606662 41213324 51516655 82426648 103033310 164853296 206066620 329706592 412133240 628503191 659413184 824266480 1257006382 1648532960 2514012764 3142515955 3297065920 5028025528 6285031910 10056051056 12570063820 20112102112 25140127640 40224204224 50280255280 100560510560 201121021120