200121111102101 has 64 divisors (see below), whose sum is σ = 238035350716416. Its totient is φ = 164634243379200.

The previous prime is 200121111102079. The next prime is 200121111102109. The reversal of 200121111102101 is 101201111121002.

It is not a de Polignac number, because 200121111102101 - 2¹⁸ = 200121110839957 is a prime.

It is a super-2 number, since 2×200121111102101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121111102109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41544758045 + ... + 41544762861.

It is an arithmetic number, because the mean of its divisors is an integer number (3719302354944).

Almost surely, 2^{200121111102101} is an apocalyptic number.

It is an amenable number.

200121111102101 is a deficient number, since it is larger than the sum of its proper divisors (37914239614315).

200121111102101 is a wasteful number, since it uses less digits than its factorization.

200121111102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 200121111102101 its reverse (101201111121002), we get a palindrome (301322222223103).

The spelling of 200121111102101 in words is "two hundred trillion, one hundred twenty-one billion, one hundred eleven million, one hundred two thousand, one hundred one".