202121110411420 has 48 divisors (see below), whose sum is σ = 427567360711680. Its totient is φ = 80256668671296.

The previous prime is 202121110411417. The next prime is 202121110411453. The reversal of 202121110411420 is 24114011121202.

It is a super-3 number, since 3×202121110411420³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202121110411391 and 202121110411400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34213812 + ... + 39684091.

It is an arithmetic number, because the mean of its divisors is an integer number (8907653348160).

Almost surely, 2^{202121110411420} is an apocalyptic number.

202121110411420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202121110411420 is an abundant number, since it is smaller than the sum of its proper divisors (225446250300260).

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

202121110411420 is a wasteful number, since it uses less digits than its factorization.

202121110411420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73898914 (or 73898912 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 202121110411420 its reverse (24114011121202), we get a palindrome (226235121532622).

The spelling of 202121110411420 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred ten million, four hundred eleven thousand, four hundred twenty".