1302210021021 has 128 divisors (see below), whose sum is σ = 2230849474560. Its totient is φ = 657343475712.

The previous prime is 1302210021017. The next prime is 1302210021053. The reversal of 1302210021021 is 1201200122031.

It is not a de Polignac number, because 1302210021021 - 2² = 1302210021017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302210021061) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 682856950 + ... + 682858856.

It is an arithmetic number, because the mean of its divisors is an integer number (17428511520).

Almost surely, 2^{1302210021021} is an apocalyptic number.

It is an amenable number.

1302210021021 is a deficient number, since it is larger than the sum of its proper divisors (928639453539).

1302210021021 is a wasteful number, since it uses less digits than its factorization.

1302210021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1302210021021 its reverse (1201200122031), we get a palindrome (2503410143052).

The spelling of 1302210021021 in words is "one trillion, three hundred two billion, two hundred ten million, twenty-one thousand, twenty-one".