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102012211222 = 2199325592627
BaseRepresentation
bin101111100000001100…
…1101101000000010110
3100202022101222021010021
41133000121231000112
53132410111224342
6114510323415354
710240646326345
oct1370031550026
9322271867107
10102012211222
113a299263189
121792b82455a
139809670c7c
144d1a3b7b5c
1529c0c10567
hex17c066d016

102012211222 has 8 divisors (see below), whose sum is σ = 153095100696. Its totient is φ = 50980510992.

The previous prime is 102012211201. The next prime is 102012211229. The reversal of 102012211222 is 222112210201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102012211196 and 102012211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012211229) 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, 12792328 + ... + 12800299.

It is an arithmetic number, because the mean of its divisors is an integer number (19136887587).

Almost surely, 2102012211222 is an apocalyptic number.

102012211222 is a deficient number, since it is larger than the sum of its proper divisors (51082889474).

102012211222 is a wasteful number, since it uses less digits than its factorization.

102012211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25594622.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102012211222 its reverse (222112210201), we get a palindrome (324124421423).

The spelling of 102012211222 in words is "one hundred two billion, twelve million, two hundred eleven thousand, two hundred twenty-two".

Divisors: 1 2 1993 3986 25592627 51185254 51006105611 102012211222