1000102220122 has 4 divisors (see below), whose sum is σ = 1500153330186. Its totient is φ = 500051110060.

The previous prime is 1000102220111. The next prime is 1000102220123. The reversal of 1000102220122 is 2210222010001.

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., 1000002000001 + 100220121 = 1000001^2 + 10011^2 .

It is not an unprimeable number, because it can be changed into a prime (1000102220123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250025555029 + ... + 250025555032.

Almost surely, 2^{1000102220122} is an apocalyptic number.

1000102220122 is a deficient number, since it is larger than the sum of its proper divisors (500051110064).

1000102220122 is an equidigital number, since it uses as much as digits as its factorization.

1000102220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500051110063.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000102220122 its reverse (2210222010001), we get a palindrome (3210324230123).

The spelling of 1000102220122 in words is "one trillion, one hundred two million, two hundred twenty thousand, one hundred twenty-two".