210200120021204 has 6 divisors (see below), whose sum is σ = 367850210037114. Its totient is φ = 105100060010600.

The previous prime is 210200120021201. The next prime is 210200120021249. The reversal of 210200120021204 is 402120021002012.

It can be written as a sum of positive squares in only one way, i.e., 196955906673604 + 13244213347600 = 14034098^2 + 3639260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200120021201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26275015002647 + ... + 26275015002654.

It is an arithmetic number, because the mean of its divisors is an integer number (61308368339519).

Almost surely, 2^{210200120021204} is an apocalyptic number.

It is an amenable number.

210200120021204 is a deficient number, since it is larger than the sum of its proper divisors (157650090015910).

210200120021204 is a wasteful number, since it uses less digits than its factorization.

210200120021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52550030005305 (or 52550030005303 counting only the distinct ones).

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

Adding to 210200120021204 its reverse (402120021002012), we get a palindrome (612320141023216).

The spelling of 210200120021204 in words is "two hundred ten trillion, two hundred billion, one hundred twenty million, twenty-one thousand, two hundred four".