2122010012221 has 8 divisors (see below), whose sum is σ = 2337840014688. Its totient is φ = 1910000010000.

The previous prime is 2122010012219. The next prime is 2122010012233. The reversal of 2122010012221 is 1222100102212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2122010012221 - 2¹ = 2122010012219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122010012195 and 2122010012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122010012281) 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, 954998895 + ... + 955001116.

It is an arithmetic number, because the mean of its divisors is an integer number (292230001836).

Almost surely, 2^{2122010012221} is an apocalyptic number.

It is an amenable number.

2122010012221 is a deficient number, since it is larger than the sum of its proper divisors (215830002467).

2122010012221 is a wasteful number, since it uses less digits than its factorization.

2122010012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910000123.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2122010012221 its reverse (1222100102212), we get a palindrome (3344110114433).

The spelling of 2122010012221 in words is "two trillion, one hundred twenty-two billion, ten million, twelve thousand, two hundred twenty-one".