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201211001202 = 23160720868181
BaseRepresentation
bin1011101101100100011…
…1000011100101110010
3201020100201222220211210
42323121013003211302
511244040004014302
6232233550020550
720352124201521
oct2733107034562
9636321886753
10201211001202
1178373401342
1232bb51a7756
1315c88195b33
149a4ac764b8
15537993466c
hex2ed91c3972

201211001202 has 16 divisors (see below), whose sum is σ = 402672439872. Its totient is φ = 67028594160.

The previous prime is 201211001197. The next prime is 201211001249. The reversal of 201211001202 is 202100112102.

It is a super-2 number, since 2×2012110012022 (a number of 23 digits) contains 22 as substring.

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, 10424449 + ... + 10443732.

It is an arithmetic number, because the mean of its divisors is an integer number (25167027492).

Almost surely, 2201211001202 is an apocalyptic number.

201211001202 is an abundant number, since it is smaller than the sum of its proper divisors (201461438670).

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

201211001202 is a wasteful number, since it uses less digits than its factorization.

201211001202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20869793.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201211001202 its reverse (202100112102), we get a palindrome (403311113304).

The spelling of 201211001202 in words is "two hundred one billion, two hundred eleven million, one thousand, two hundred two".

Divisors: 1 2 3 6 1607 3214 4821 9642 20868181 41736362 62604543 125209086 33535166867 67070333734 100605500601 201211001202