1002121100122 has 16 divisors (see below), whose sum is σ = 1570091993280. Its totient is φ = 478800286272.

The previous prime is 1002121100111. The next prime is 1002121100129. The reversal of 1002121100122 is 2210011212001.

It is not an unprimeable number, because it can be changed into a prime (1002121100129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10749048 + ... + 10841875.

It is an arithmetic number, because the mean of its divisors is an integer number (98130749580).

Almost surely, 2^{1002121100122} is an apocalyptic number.

1002121100122 is a deficient number, since it is larger than the sum of its proper divisors (567970893158).

1002121100122 is a wasteful number, since it uses less digits than its factorization.

1002121100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21591957.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1002121100122 its reverse (2210011212001), we get a palindrome (3212132312123).

The spelling of 1002121100122 in words is "one trillion, two billion, one hundred twenty-one million, one hundred thousand, one hundred twenty-two".