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102000121222 = 251000060611
BaseRepresentation
bin101111011111110101…
…1100101010110000110
3100202021120020000202111
41132333223211112012
53132344012334342
6114505212331234
710240441503466
oct1367753452606
9322246200674
10102000121222
113a29245584a
1217927773b1a
139806cca01c
144d1894bba6
1529beb23217
hex17bfae5586

102000121222 has 4 divisors (see below), whose sum is σ = 153000181836. Its totient is φ = 51000060610.

The previous prime is 102000121187. The next prime is 102000121229. The reversal of 102000121222 is 222121000201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222121000201 = 851326091977.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102000121229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500030304 + ... + 25500030307.

It is an arithmetic number, because the mean of its divisors is an integer number (38250045459).

Almost surely, 2102000121222 is an apocalyptic number.

102000121222 is a deficient number, since it is larger than the sum of its proper divisors (51000060614).

102000121222 is an equidigital number, since it uses as much as digits as its factorization.

102000121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51000060613.

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

Adding to 102000121222 its reverse (222121000201), we get a palindrome (324121121423).

The spelling of 102000121222 in words is "one hundred two billion, one hundred twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 51000060611 102000121222