1210202122004 has 12 divisors (see below), whose sum is σ = 2123135147028. Its totient is φ = 603592080000.

The previous prime is 1210202122001. The next prime is 1210202122021. The reversal of 1210202122004 is 4002212020121.

It can be written as a sum of positive squares in 2 ways, for example, as 792808598404 + 417393523600 = 890398^2 + 646060^2 .

It is a super-2 number, since 2×1210202122004² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210202122001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377243447 + ... + 377246654.

It is an arithmetic number, because the mean of its divisors is an integer number (176927928919).

Almost surely, 2^{1210202122004} is an apocalyptic number.

It is an amenable number.

1210202122004 is a deficient number, since it is larger than the sum of its proper divisors (912933025024).

1210202122004 is a wasteful number, since it uses less digits than its factorization.

1210202122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754490506 (or 754490504 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1210202122004 its reverse (4002212020121), we get a palindrome (5212414142125).

The spelling of 1210202122004 in words is "one trillion, two hundred ten billion, two hundred two million, one hundred twenty-two thousand, four".