1210100121010 has 32 divisors (see below), whose sum is σ = 2376395578944. Its totient is φ = 439999560000.

The previous prime is 1210100121001. The next prime is 1210100121019. The reversal of 1210100121010 is 101210010121.

It is an interprime number because it is at equal distance from previous prime (1210100121001) and next prime (1210100121019).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1210100121019) 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, 876565 + ... + 1785655.

It is an arithmetic number, because the mean of its divisors is an integer number (74262361842).

Almost surely, 2^{1210100121010} is an apocalyptic number.

1210100121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210100121010 is a deficient number, since it is larger than the sum of its proper divisors (1166295457934).

1210100121010 is a wasteful number, since it uses less digits than its factorization.

1210100121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921210.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1210100121010 its reverse (101210010121), we get a palindrome (1311310131131).

The spelling of 1210100121010 in words is "one trillion, two hundred ten billion, one hundred million, one hundred twenty-one thousand, ten".