1210011002010 has 72 divisors (see below), whose sum is σ = 3149280929340. Its totient is φ = 322336210944.

The previous prime is 1210011001999. The next prime is 1210011002021. The reversal of 1210011002010 is 102001100121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1210011001999) and next prime (1210011002021).

It can be written as a sum of positive squares in 6 ways, for example, as 712617923889 + 497393078121 = 844167^2 + 705261^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1210011001983 and 1210011002001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 391714546 + ... + 391717634.

Almost surely, 2^{1210011002010} is an apocalyptic number.

1210011002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210011002010 is an abundant number, since it is smaller than the sum of its proper divisors (1939269927330).

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

1210011002010 is an equidigital number, since it uses as much as digits as its factorization.

1210011002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600 (or 4508 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1210011002010 its reverse (102001100121), we get a palindrome (1312012102131).

The spelling of 1210011002010 in words is "one trillion, two hundred ten billion, eleven million, two thousand, ten".