202121110001101 has 8 divisors (see below), whose sum is σ = 202432412770560. Its totient is φ = 201810027004992.

The previous prime is 202121110001093. The next prime is 202121110001179. The reversal of 202121110001101 is 101100011121202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202121110001101 - 2³ = 202121110001093 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 (202121110001501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53102515 + ... + 56781328.

It is an arithmetic number, because the mean of its divisors is an integer number (25304051596320).

Almost surely, 2^{202121110001101} is an apocalyptic number.

It is an amenable number.

202121110001101 is a deficient number, since it is larger than the sum of its proper divisors (311302769459).

202121110001101 is a wasteful number, since it uses less digits than its factorization.

202121110001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109886675.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 202121110001101 its reverse (101100011121202), we get a palindrome (303221121122303).

The spelling of 202121110001101 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred ten million, one thousand, one hundred one".