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102201201211211 = 115138988763399
BaseRepresentation
bin10111001111001110010010…
…010010110011011101001011
3111101212100011102201220202022
4113033032102102303131023
5101343431030002224321
61001210330023555055
730345536016545654
oct2717162222633513
9441770142656668
10102201201211211
112a6233167819a3
12b56733b5bba8b
1345046bb82603b
141b347c910a52b
15bc374b3eadab
hex5cf3924b374b

102201201211211 has 4 divisors (see below), whose sum is σ = 102201291126000. Its totient is φ = 102201111296424.

The previous prime is 102201201211181. The next prime is 102201201211231. The reversal of 102201201211211 is 112112102102201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102201201211211 - 234 = 102184021342027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102201201211211.

It is not an unprimeable number, because it can be changed into a prime (102201201211231) 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, 43230311 + ... + 45533088.

It is an arithmetic number, because the mean of its divisors is an integer number (25550322781500).

Almost surely, 2102201201211211 is an apocalyptic number.

102201201211211 is a deficient number, since it is larger than the sum of its proper divisors (89914789).

102201201211211 is an equidigital number, since it uses as much as digits as its factorization.

102201201211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89914788.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102201201211211 its reverse (112112102102201), we get a palindrome (214313303313412).

The spelling of 102201201211211 in words is "one hundred two trillion, two hundred one billion, two hundred one million, two hundred eleven thousand, two hundred eleven".

Divisors: 1 1151389 88763399 102201201211211