1000001021022 has 24 divisors (see below), whose sum is σ = 2179642950576. Its totient is φ = 331337662656.

The previous prime is 1000001021017. The next prime is 1000001021027. The reversal of 1000001021022 is 2201201000001.

1000001021022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1000001021017) and next prime (1000001021027).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1000001020995 and 1000001021013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000001021027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166331163 + ... + 166337174.

It is an arithmetic number, because the mean of its divisors is an integer number (90818456274).

Almost surely, 2^{1000001021022} is an apocalyptic number.

1000001021022 is an abundant number, since it is smaller than the sum of its proper divisors (1179641929554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000001021022 is a wasteful number, since it uses less digits than its factorization.

1000001021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332668512 (or 332668509 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1000001021022 its reverse (2201201000001), we get a palindrome (3201202021023).

The spelling of 1000001021022 in words is "one trillion, one million, twenty-one thousand, twenty-two".