1202101022021 has 4 divisors (see below), whose sum is σ = 1254366283872. Its totient is φ = 1149835760172.

The previous prime is 1202101021993. The next prime is 1202101022047. The reversal of 1202101022021 is 1202201012021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1202101022021 - 2³⁴ = 1184921152837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202101021987 and 1202101022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202101022621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26132630891 + ... + 26132630936.

It is an arithmetic number, because the mean of its divisors is an integer number (313591570968).

Almost surely, 2^{1202101022021} is an apocalyptic number.

It is an amenable number.

1202101022021 is a deficient number, since it is larger than the sum of its proper divisors (52265261851).

1202101022021 is an equidigital number, since it uses as much as digits as its factorization.

1202101022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52265261850.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1202101022021 its reverse (1202201012021), we get a palindrome (2404302034042).

The spelling of 1202101022021 in words is "one trillion, two hundred two billion, one hundred one million, twenty-two thousand, twenty-one".