1222121122004 has 48 divisors (see below), whose sum is σ = 2306478216000. Its totient is φ = 564708153600.

The previous prime is 1222121121997. The next prime is 1222121122007. The reversal of 1222121122004 is 4002211212221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222121122007) 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, 30457547 + ... + 30497645.

It is an arithmetic number, because the mean of its divisors is an integer number (48051629500).

Almost surely, 2^{1222121122004} is an apocalyptic number.

It is an amenable number.

1222121122004 is a deficient number, since it is larger than the sum of its proper divisors (1084357093996).

1222121122004 is a wasteful number, since it uses less digits than its factorization.

1222121122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49944 (or 49942 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1222121122004 its reverse (4002211212221), we get a palindrome (5224332334225).

The spelling of 1222121122004 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, four".