1002122101002 has 64 divisors (see below), whose sum is σ = 2210752051200. Its totient is φ = 300314849280.

The previous prime is 1002122100989. The next prime is 1002122101003. The reversal of 1002122101002 is 2001012212001.

It is not an unprimeable number, because it can be changed into a prime (1002122101003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2145199 + ... + 2570237.

It is an arithmetic number, because the mean of its divisors is an integer number (34543000800).

Almost surely, 2^{1002122101002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002122101002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105376025600).

1002122101002 is an abundant number, since it is smaller than the sum of its proper divisors (1208629950198).

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

1002122101002 is a wasteful number, since it uses less digits than its factorization.

1002122101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425451.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002122101002 its reverse (2001012212001), we get a palindrome (3003134313003).

The spelling of 1002122101002 in words is "one trillion, two billion, one hundred twenty-two million, one hundred one thousand, two".