2210121012021 has 16 divisors (see below), whose sum is σ = 3175150655040. Its totient is φ = 1359370085760.

The previous prime is 2210121012007. The next prime is 2210121012067. The reversal of 2210121012021 is 1202101210122.

It is not a de Polignac number, because 2210121012021 - 2³¹ = 2207973528373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210121012521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14598376 + ... + 14748993.

It is an arithmetic number, because the mean of its divisors is an integer number (198446915940).

Almost surely, 2^{2210121012021} is an apocalyptic number.

It is an amenable number.

2210121012021 is a deficient number, since it is larger than the sum of its proper divisors (965029643019).

2210121012021 is a wasteful number, since it uses less digits than its factorization.

2210121012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29349316.

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

Adding to 2210121012021 its reverse (1202101210122), we get a palindrome (3412222222143).

The spelling of 2210121012021 in words is "two trillion, two hundred ten billion, one hundred twenty-one million, twelve thousand, twenty-one".