1122200221012 has 24 divisors (see below), whose sum is σ = 2122133972616. Its totient is φ = 516170848128.

The previous prime is 1122200221007. The next prime is 1122200221027. The reversal of 1122200221012 is 2101220022211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 405560090896 + 716640130116 = 636836^2 + 846546^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36812023 + ... + 36842494.

It is an arithmetic number, because the mean of its divisors is an integer number (88422248859).

Almost surely, 2^{1122200221012} is an apocalyptic number.

It is an amenable number.

1122200221012 is a deficient number, since it is larger than the sum of its proper divisors (999933751604).

1122200221012 is a wasteful number, since it uses less digits than its factorization.

1122200221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73654827 (or 73654825 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1122200221012 its reverse (2101220022211), we get a palindrome (3223420243223).

The spelling of 1122200221012 in words is "one trillion, one hundred twenty-two billion, two hundred million, two hundred twenty-one thousand, twelve".