202122100210001 has 4 divisors (see below), whose sum is σ = 202123651510272. Its totient is φ = 202120548909732.

The previous prime is 202122100209949. The next prime is 202122100210027. The reversal of 202122100210001 is 100012001221202.

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 a de Polignac number, because none of the positive numbers 2^k-202122100210001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202122100210301) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 775454681 + ... + 775715286.

It is an arithmetic number, because the mean of its divisors is an integer number (50530912877568).

Almost surely, 2^{202122100210001} is an apocalyptic number.

It is an amenable number.

202122100210001 is a deficient number, since it is larger than the sum of its proper divisors (1551300271).

202122100210001 is a wasteful number, since it uses less digits than its factorization.

202122100210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551300270.

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

Adding to 202122100210001 its reverse (100012001221202), we get a palindrome (302134101431203).

The spelling of 202122100210001 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred million, two hundred ten thousand, one".