102121214282 has 4 divisors (see below), whose sum is σ = 153181821426. Its totient is φ = 51060607140.

The previous prime is 102121214281. The next prime is 102121214291. The reversal of 102121214282 is 282412121201.

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

It can be written as a sum of positive squares in only one way, i.e., 83377140001 + 18744074281 = 288751^2 + 136909^2 .

It is not an unprimeable number, because it can be changed into a prime (102121214281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530303569 + ... + 25530303572.

Almost surely, 2^102121214282 is an apocalyptic number.

102121214282 is a deficient number, since it is larger than the sum of its proper divisors (51060607144).

102121214282 is an equidigital number, since it uses as much as digits as its factorization.

102121214282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51060607143.

The product of its (nonzero) digits is 1024, while the sum is 26.

Adding to 102121214282 its reverse (282412121201), we get a palindrome (384533335483).

The spelling of 102121214282 in words is "one hundred two billion, one hundred twenty-one million, two hundred fourteen thousand, two hundred eighty-two".