1002211110122 has 4 divisors (see below), whose sum is σ = 1503316665186. Its totient is φ = 501105555060.

The previous prime is 1002211110107. The next prime is 1002211110133. The reversal of 1002211110122 is 2210111122001.

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., 694153919281 + 308057190841 = 833159^2 + 555029^2 .

It is a super-2 number, since 2×1002211110122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002211110097 and 1002211110106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250552777529 + ... + 250552777532.

Almost surely, 2^{1002211110122} is an apocalyptic number.

1002211110122 is a deficient number, since it is larger than the sum of its proper divisors (501105555064).

1002211110122 is an equidigital number, since it uses as much as digits as its factorization.

1002211110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501105555063.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1002211110122 its reverse (2210111122001), we get a palindrome (3212322232123).

The spelling of 1002211110122 in words is "one trillion, two billion, two hundred eleven million, one hundred ten thousand, one hundred twenty-two".