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202002230121 = 337109137121867
BaseRepresentation
bin1011110000100001000…
…1010110101101101001
3201022101212211111212120
42330020101112231221
511302200032330441
6232444252501453
720410542424416
oct2741021265551
9638355744776
10202002230121
1178739aa133a
123319617a889
1316083097623
149ac3d9b10d
1553c4127966
hex2f08456b69

202002230121 has 32 divisors (see below), whose sum is σ = 281193348480. Its totient is φ = 128877682176.

The previous prime is 202002230119. The next prime is 202002230161. The reversal of 202002230121 is 121032200202.

It is a happy number.

It is not a de Polignac number, because 202002230121 - 21 = 202002230119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202002230121.

It is not an unprimeable number, because it can be changed into a prime (202002230161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1596630 + ... + 1718496.

It is an arithmetic number, because the mean of its divisors is an integer number (8787292140).

Almost surely, 2202002230121 is an apocalyptic number.

It is an amenable number.

202002230121 is a deficient number, since it is larger than the sum of its proper divisors (79191118359).

202002230121 is a wasteful number, since it uses less digits than its factorization.

202002230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122153.

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

Adding to 202002230121 its reverse (121032200202), we get a palindrome (323034430323).

The spelling of 202002230121 in words is "two hundred two billion, two million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 3 37 109 111 137 327 411 4033 5069 12099 14933 15207 44799 121867 365601 552521 1657563 4509079 13283503 13527237 16695779 39850509 50087337 491489611 617743823 1474468833 1819839911 1853231469 5459519733 67334076707 202002230121