1121210000004 has 48 divisors (see below), whose sum is σ = 2811392273088. Its totient is φ = 346502120448.

The previous prime is 1121210000003. The next prime is 1121210000023. The reversal of 1121210000004 is 4000000121211.

It is a happy number.

It is a super-2 number, since 2×1121210000004² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1121210000003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41002209 + ... + 41029544.

It is an arithmetic number, because the mean of its divisors is an integer number (58570672356).

Almost surely, 2^{1121210000004} is an apocalyptic number.

It is an amenable number.

1121210000004 is an abundant number, since it is smaller than the sum of its proper divisors (1690182273084).

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

1121210000004 is a wasteful number, since it uses less digits than its factorization.

1121210000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82031844 (or 82031842 counting only the distinct ones).

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

Adding to 1121210000004 its reverse (4000000121211), we get a palindrome (5121210121215).

The spelling of 1121210000004 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, four", and thus it is an aban number.