102011222002 has 4 divisors (see below), whose sum is σ = 153016833006.
Its totient is φ = 51005611000.
The previous prime is 102011221997. The next prime is 102011222009. The reversal of 102011222002 is 200222110201.
Adding to 102011222002 its reverse (200222110201), we get a palindrome (302233332203).
It is a happy number.
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., 80275322241 + 21735899761 = 283329^2 + 147431^2
It is not an unprimeable number, because it can be changed into a prime (102011222009) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25502805499 + ... + 25502805502.
Almost surely, 2102011222002 is an apocalyptic number.
102011222002 is a deficient number, since it is larger than the sum of its proper divisors (51005611004).
102011222002 is an equidigital number, since it uses as much as digits as its factorization.
102011222002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51005611003.
The product of its (nonzero) digits is 32, while the sum is 13.
The spelling of 102011222002 in words is "one hundred two billion, eleven million, two hundred twenty-two thousand, two".