1210000111002 has 16 divisors (see below), whose sum is σ = 2688889135680. Its totient is φ = 403333370316.

The previous prime is 1210000110997. The next prime is 1210000111003. The reversal of 1210000111002 is 2001110000121.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1210000111003) 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, 11203704678 + ... + 11203704785.

It is an arithmetic number, because the mean of its divisors is an integer number (168055570980).

Almost surely, 2^{1210000111002} is an apocalyptic number.

1210000111002 is an abundant number, since it is smaller than the sum of its proper divisors (1478889024678).

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

1210000111002 is a wasteful number, since it uses less digits than its factorization.

1210000111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22407409474 (or 22407409468 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1210000111002 its reverse (2001110000121), we get a palindrome (3211110111123).

The spelling of 1210000111002 in words is "one trillion, two hundred ten billion, one hundred eleven thousand, two".