202101220200101 has 4 divisors (see below), whose sum is σ = 207030518253804. Its totient is φ = 197171922146400.

The previous prime is 202101220200079. The next prime is 202101220200107. The reversal of 202101220200101 is 101002022101202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65789780988100 + 136311439212001 = 8111090^2 + 11675249^2 .

It is a cyclic number.

It is not a de Polignac number, because 202101220200101 - 2⁴² = 197703173688997 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 (202101220200107) 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, 2464649026790 + ... + 2464649026871.

It is an arithmetic number, because the mean of its divisors is an integer number (51757629563451).

Almost surely, 2^{202101220200101} is an apocalyptic number.

It is an amenable number.

202101220200101 is a deficient number, since it is larger than the sum of its proper divisors (4929298053703).

202101220200101 is an equidigital number, since it uses as much as digits as its factorization.

202101220200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929298053702.

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

Adding to 202101220200101 its reverse (101002022101202), we get a palindrome (303103242301303).

The spelling of 202101220200101 in words is "two hundred two trillion, one hundred one billion, two hundred twenty million, two hundred thousand, one hundred one".