1210120202090 has 16 divisors (see below), whose sum is σ = 2272921423488. Its totient is φ = 463002512016.

The previous prime is 1210120202029. The next prime is 1210120202119. The reversal of 1210120202090 is 902020210121.

It is a happy number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 2630695862 + ... + 2630696321.

It is an arithmetic number, because the mean of its divisors is an integer number (142057588968).

Almost surely, 2^{1210120202090} is an apocalyptic number.

1210120202090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210120202090 is a deficient number, since it is larger than the sum of its proper divisors (1062801221398).

1210120202090 is a wasteful number, since it uses less digits than its factorization.

1210120202090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261392213.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1210120202090 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred two thousand, ninety".