102201002 has 4 divisors (see below), whose sum is σ = 153301506. Its totient is φ = 51100500.

The previous prime is 102200977. The next prime is 102201007. The reversal of 102201002 is 200102201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200102201 = 13 ⋅15392477.

It can be written as a sum of positive squares in only one way, i.e., 80120401 + 22080601 = 8951^2 + 4699^2 .

It is not an unprimeable number, because it can be changed into a prime (102201007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550249 + ... + 25550252.

Almost surely, 2^102201002 is an apocalyptic number.

102201002 is a deficient number, since it is larger than the sum of its proper divisors (51100504).

102201002 is an equidigital number, since it uses as much as digits as its factorization.

102201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51100503.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 102201002 is about 10109.4511225882. The cubic root of 102201002 is about 467.5395823768.

Adding to 102201002 its reverse (200102201), we get a palindrome (302303203).

The spelling of 102201002 in words is "one hundred two million, two hundred one thousand, two".