210122220122 has 8 divisors (see below), whose sum is σ = 315841334400. Its totient is φ = 104841775324.

The previous prime is 210122220101. The next prime is 210122220127. The reversal of 210122220122 is 221022221012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 210122220122.

It is not an unprimeable number, because it can be changed into a prime (210122220127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109666172 + ... + 109668087.

It is an arithmetic number, because the mean of its divisors is an integer number (39480166800).

Almost surely, 2^210122220122 is an apocalyptic number.

210122220122 is a deficient number, since it is larger than the sum of its proper divisors (105719114278).

210122220122 is a wasteful number, since it uses less digits than its factorization.

210122220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219334740.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210122220122 its reverse (221022221012), we get a palindrome (431144441134).

The spelling of 210122220122 in words is "two hundred ten billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty-two".