200212001112121 has 4 divisors (see below), whose sum is σ = 200213809022500. Its totient is φ = 200210193201744.

The previous prime is 200212001112107. The next prime is 200212001112131. The reversal of 200212001112121 is 121211100212002.

200212001112121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 164891563502121 + 35320437610000 = 12841011^2 + 5943100^2 .

It is a cyclic number.

It is not a de Polignac number, because 200212001112121 - 2³⁷ = 200074562158649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200212001112095 and 200212001112104.

It is not an unprimeable number, because it can be changed into a prime (200212001112131) 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, 903789066 + ... + 904010563.

It is an arithmetic number, because the mean of its divisors is an integer number (50053452255625).

Almost surely, 2^{200212001112121} is an apocalyptic number.

It is an amenable number.

200212001112121 is a deficient number, since it is larger than the sum of its proper divisors (1807910379).

200212001112121 is a wasteful number, since it uses less digits than its factorization.

200212001112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807910378.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200212001112121 its reverse (121211100212002), we get a palindrome (321423101324123).

The spelling of 200212001112121 in words is "two hundred trillion, two hundred twelve billion, one million, one hundred twelve thousand, one hundred twenty-one".