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102222021001 = 131780320771
BaseRepresentation
bin101111100110011101…
…0000100000110001001
3100202212000202201000211
41133030322010012021
53133322314133001
6114543220401121
710246104561562
oct1371472040611
9322760681024
10102222021001
113a3967363a1
1217989b461a1
139840c81379
144d3a1d1169
1529d4356351
hex17cce84189

102222021001 has 4 divisors (see below), whose sum is σ = 103002341904. Its totient is φ = 101441700100.

The previous prime is 102222020977. The next prime is 102222021067. The reversal of 102222021001 is 100120222201.

It is a happy number.

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 102222021001 - 29 = 102222020489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102223021001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390160255 + ... + 390160516.

It is an arithmetic number, because the mean of its divisors is an integer number (25750585476).

Almost surely, 2102222021001 is an apocalyptic number.

It is an amenable number.

102222021001 is a deficient number, since it is larger than the sum of its proper divisors (780320903).

102222021001 is an equidigital number, since it uses as much as digits as its factorization.

102222021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780320902.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102222021001 its reverse (100120222201), we get a palindrome (202342243202).

The spelling of 102222021001 in words is "one hundred two billion, two hundred twenty-two million, twenty-one thousand, one".

Divisors: 1 131 780320771 102222021001