1122021000012 has 48 divisors (see below), whose sum is σ = 2884331245824. Its totient is φ = 336639960000.

The previous prime is 1122021000011. The next prime is 1122021000013. The reversal of 1122021000012 is 2100001202211.

It is an interprime number because it is at equal distance from previous prime (1122021000011) and next prime (1122021000013).

It is a super-2 number, since 2×1122021000012² (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 (1122021000011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42066664 + ... + 42093327.

It is an arithmetic number, because the mean of its divisors is an integer number (60090234288).

Almost surely, 2^{1122021000012} is an apocalyptic number.

1122021000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122021000012 is an abundant number, since it is smaller than the sum of its proper divisors (1762310245812).

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

1122021000012 is a wasteful number, since it uses less digits than its factorization.

1122021000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84160110 (or 84160108 counting only the distinct ones).

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

Adding to 1122021000012 its reverse (2100001202211), we get a palindrome (3222022202223).

The spelling of 1122021000012 in words is "one trillion, one hundred twenty-two billion, twenty-one million, twelve", and thus it is an aban number.