202021121222101 has 8 divisors (see below), whose sum is σ = 202060375977600. Its totient is φ = 201981868142160.

The previous prime is 202021121222047. The next prime is 202021121222147. The reversal of 202021121222101 is 101222121120202.

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 202021121222101 - 2¹¹ = 202021121220053 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 (202021121222191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255877335 + ... + 256665643.

It is an arithmetic number, because the mean of its divisors is an integer number (25257546997200).

Almost surely, 2^{202021121222101} is an apocalyptic number.

It is an amenable number.

202021121222101 is a deficient number, since it is larger than the sum of its proper divisors (39254755499).

202021121222101 is an equidigital number, since it uses as much as digits as its factorization.

202021121222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837779.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202021121222101 its reverse (101222121120202), we get a palindrome (303243242342303).

The spelling of 202021121222101 in words is "two hundred two trillion, twenty-one billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred one".