122100002 has 4 divisors (see below), whose sum is σ = 183150006.
Its totient is φ = 61050000.
The previous prime is 122099993. The next prime is 122100007. The reversal of 122100002 is 200001221.
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., 91948921 + 30151081 = 9589^2 + 5491^2
It is not an unprimeable number, because it can be changed into a prime (122100007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30524999 + ... + 30525002.
Almost surely, 2122100002 is an apocalyptic number.
122100002 is a deficient number, since it is larger than the sum of its proper divisors (61050004).
122100002 is an equidigital number, since it uses as much as digits as its factorization.
122100002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61050003.
The product of its (nonzero) digits is 8, while the sum is 8.
The square root of 122100002 is about 11049.8869677477.
The cubic root of 122100002 is about 496.1030423492.
Adding to 122100002 its reverse (200001221), we get a palindrome (322101223).
The spelling of 122100002 in words is "one hundred twenty-two million, one hundred thousand, two".