200101202012121 has 4 divisors (see below), whose sum is σ = 266801602682832. Its totient is φ = 133400801341412.

The previous prime is 200101202012119. The next prime is 200101202012123. The reversal of 200101202012121 is 121210202101002.

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 an interprime number because it is at equal distance from previous prime (200101202012119) and next prime (200101202012123).

It is a cyclic number.

It is not a de Polignac number, because 200101202012121 - 2¹ = 200101202012119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200101202012121.

It is not an unprimeable number, because it can be changed into a prime (200101202012123) 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, 33350200335351 + ... + 33350200335356.

It is an arithmetic number, because the mean of its divisors is an integer number (66700400670708).

Almost surely, 2^{200101202012121} is an apocalyptic number.

It is an amenable number.

200101202012121 is a deficient number, since it is larger than the sum of its proper divisors (66700400670711).

200101202012121 is an equidigital number, since it uses as much as digits as its factorization.

200101202012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66700400670710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200101202012121 its reverse (121210202101002), we get a palindrome (321311404113123).

The spelling of 200101202012121 in words is "two hundred trillion, one hundred one billion, two hundred two million, twelve thousand, one hundred twenty-one".