32121200002105 has 128 divisors (see below), whose sum is σ = 45484459130880. Its totient is φ = 21596238766080.

The previous prime is 32121200002081. The next prime is 32121200002153. The reversal of 32121200002105 is 50120000212123.

It is not a de Polignac number, because 32121200002105 - 2⁷ = 32121200001977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3337956324 + ... + 3337965946.

It is an arithmetic number, because the mean of its divisors is an integer number (355347336960).

Almost surely, 2^{32121200002105} is an apocalyptic number.

It is an amenable number.

32121200002105 is a deficient number, since it is larger than the sum of its proper divisors (13363259128775).

32121200002105 is a wasteful number, since it uses less digits than its factorization.

32121200002105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 32121200002105 its reverse (50120000212123), we get a palindrome (82241200214228).

The spelling of 32121200002105 in words is "thirty-two trillion, one hundred twenty-one billion, two hundred million, two thousand, one hundred five".