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102201201101 = 197609517189
BaseRepresentation
bin101111100101110101…
…0101001000111001101
3100202210120120221111102
41133023222221013031
53133302001413401
6114541154232445
710245432606266
oct1371352510715
9322716527442
10102201201101
113a385a0606a
1217982b85725
1398398719bc
144d3753196d
1529d25e256b
hex17cbaa91cd

102201201101 has 4 divisors (see below), whose sum is σ = 102201915900. Its totient is φ = 102200486304.

The previous prime is 102201201041. The next prime is 102201201107. The reversal of 102201201101 is 101102102201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 63244705225 + 38956495876 = 251485^2 + 197374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102201201101 is a prime.

It is a super-2 number, since 2×1022012011012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201201107) 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, 60986 + ... + 456203.

It is an arithmetic number, because the mean of its divisors is an integer number (25550478975).

Almost surely, 2102201201101 is an apocalyptic number.

It is an amenable number.

102201201101 is a deficient number, since it is larger than the sum of its proper divisors (714799).

102201201101 is an equidigital number, since it uses as much as digits as its factorization.

102201201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714798.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102201201101 its reverse (101102102201), we get a palindrome (203303303302).

The spelling of 102201201101 in words is "one hundred two billion, two hundred one million, two hundred one thousand, one hundred one".

Divisors: 1 197609 517189 102201201101