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202001232212101 = 728857318887443
BaseRepresentation
bin101101111011100000010011…
…101100001011000010000101
3222111020010111012002202202201
4231323200103230023002011
5202434042010421241401
61553342030205034501
760356051562411640
oct5573402354130205
9874203435082681
10202001232212101
1159400272471343
121a7a5237b55a31
138893832bb552a
1437c4ca9dcaa57
1518547b031bb01
hexb7b813b0b085

202001232212101 has 4 divisors (see below), whose sum is σ = 230858551099552. Its totient is φ = 173143913324652.

The previous prime is 202001232212089. The next prime is 202001232212123. The reversal of 202001232212101 is 101212232100202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202001232212101 - 227 = 202001097994373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001232212191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14428659443715 + ... + 14428659443728.

It is an arithmetic number, because the mean of its divisors is an integer number (57714637774888).

Almost surely, 2202001232212101 is an apocalyptic number.

It is an amenable number.

202001232212101 is a deficient number, since it is larger than the sum of its proper divisors (28857318887451).

202001232212101 is an equidigital number, since it uses as much as digits as its factorization.

202001232212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28857318887450.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 202001232212101 its reverse (101212232100202), we get a palindrome (303213464312303).

The spelling of 202001232212101 in words is "two hundred two trillion, one billion, two hundred thirty-two million, two hundred twelve thousand, one hundred one".

Divisors: 1 7 28857318887443 202001232212101