1013121122202 has 128 divisors (see below), whose sum is σ = 2585281536000. Its totient is φ = 288084765888.

The previous prime is 1013121122191. The next prime is 1013121122203. The reversal of 1013121122202 is 2022211213101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1013121122203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93810799 + ... + 93821597.

It is an arithmetic number, because the mean of its divisors is an integer number (20197512000).

Almost surely, 2^{1013121122202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013121122202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1292640768000).

1013121122202 is an abundant number, since it is smaller than the sum of its proper divisors (1572160413798).

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

1013121122202 is a wasteful number, since it uses less digits than its factorization.

1013121122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11977 (or 11971 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1013121122202 its reverse (2022211213101), we get a palindrome (3035332335303).

The spelling of 1013121122202 in words is "one trillion, thirteen billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred two".