1012121112002 has 128 divisors (see below), whose sum is σ = 2082592512000. Its totient is φ = 363545582400.

The previous prime is 1012121111941. The next prime is 1012121112007. The reversal of 1012121112002 is 2002111212101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1012121112007) 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, 84260177 + ... + 84272187.

It is an arithmetic number, because the mean of its divisors is an integer number (16270254000).

Almost surely, 2^{1012121112002} is an apocalyptic number.

1012121112002 is an abundant number, since it is smaller than the sum of its proper divisors (1070471399998).

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

1012121112002 is a wasteful number, since it uses less digits than its factorization.

1012121112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12917 (or 12903 counting only the distinct ones).

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

Adding to 1012121112002 its reverse (2002111212101), we get a palindrome (3014232324103).

The spelling of 1012121112002 in words is "one trillion, twelve billion, one hundred twenty-one million, one hundred twelve thousand, two".