210200220200122 has 4 divisors (see below), whose sum is σ = 315300330300186. Its totient is φ = 105100110100060.

The previous prime is 210200220200101. The next prime is 210200220200137. The reversal of 210200220200122 is 221002022002012.

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., 125617268983921 + 84582951216201 = 11207911^2 + 9196899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210200220200096 and 210200220200105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52550055050029 + ... + 52550055050032.

Almost surely, 2^{210200220200122} is an apocalyptic number.

210200220200122 is a deficient number, since it is larger than the sum of its proper divisors (105100110100064).

210200220200122 is a wasteful number, since it uses less digits than its factorization.

210200220200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105100110100063.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210200220200122 its reverse (221002022002012), we get a palindrome (431202242202134).

The spelling of 210200220200122 in words is "two hundred ten trillion, two hundred billion, two hundred twenty million, two hundred thousand, one hundred twenty-two".