202021012002101 has 4 divisors (see below), whose sum is σ = 202022156054304. Its totient is φ = 202019867949900.

The previous prime is 202021012002091. The next prime is 202021012002157. The reversal of 202021012002101 is 101200210120202.

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 202021012002101 - 2¹⁴ = 202021011985717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021012001101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571761185 + ... + 572114406.

It is an arithmetic number, because the mean of its divisors is an integer number (50505539013576).

Almost surely, 2^{202021012002101} is an apocalyptic number.

It is an amenable number.

202021012002101 is a deficient number, since it is larger than the sum of its proper divisors (1144052203).

202021012002101 is a wasteful number, since it uses less digits than its factorization.

202021012002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144052202.

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

Adding to 202021012002101 its reverse (101200210120202), we get a palindrome (303221222122303).

It can be divided in two parts, 20202 and 1012002101, that multiplied together give a palindrome (20444466444402).

The spelling of 202021012002101 in words is "two hundred two trillion, twenty-one billion, twelve million, two thousand, one hundred one".