12211020002121 has 8 divisors (see below), whose sum is σ = 16282400474400. Its totient is φ = 8140159765632.

The previous prime is 12211020002119. The next prime is 12211020002143. The reversal of 12211020002121 is 12120002011221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12211020002121 - 2¹ = 12211020002119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12211020002121.

It is not an unprimeable number, because it can be changed into a prime (12211020002921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130004175 + ... + 130098068.

It is an arithmetic number, because the mean of its divisors is an integer number (2035300059300).

Almost surely, 2^{12211020002121} is an apocalyptic number.

It is an amenable number.

12211020002121 is a deficient number, since it is larger than the sum of its proper divisors (4071380472279).

12211020002121 is a wasteful number, since it uses less digits than its factorization.

12211020002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260117895.

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

Adding to 12211020002121 its reverse (12120002011221), we get a palindrome (24331022013342).

The spelling of 12211020002121 in words is "twelve trillion, two hundred eleven billion, twenty million, two thousand, one hundred twenty-one".