1210221707904 has 96 divisors (see below), whose sum is σ = 3799133526240. Its totient is φ = 366733847040.

The previous prime is 1210221707879. The next prime is 1210221707909. The reversal of 1210221707904 is 4097071220121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1210221707909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47739132 + ... + 47764475.

It is an arithmetic number, because the mean of its divisors is an integer number (39574307565).

Almost surely, 2^{1210221707904} is an apocalyptic number.

It is an amenable number.

1210221707904 is an abundant number, since it is smaller than the sum of its proper divisors (2588911818336).

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

1210221707904 is a wasteful number, since it uses less digits than its factorization.

1210221707904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95503638 (or 95503623 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 1210221707904 in words is "one trillion, two hundred ten billion, two hundred twenty-one million, seven hundred seven thousand, nine hundred four".