1210024200138 has 16 divisors (see below), whose sum is σ = 2606205969696. Its totient is φ = 372315138480.

The previous prime is 1210024200137. The next prime is 1210024200169. The reversal of 1210024200138 is 8310024200121.

It is not an unprimeable number, because it can be changed into a prime (1210024200137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7756565308 + ... + 7756565463.

It is an arithmetic number, because the mean of its divisors is an integer number (162887873106).

Almost surely, 2^{1210024200138} is an apocalyptic number.

1210024200138 is an abundant number, since it is smaller than the sum of its proper divisors (1396181769558).

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

1210024200138 is a wasteful number, since it uses less digits than its factorization.

1210024200138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15513130789.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1210024200138 its reverse (8310024200121), we get a palindrome (9520048400259).

The spelling of 1210024200138 in words is "one trillion, two hundred ten billion, twenty-four million, two hundred thousand, one hundred thirty-eight".