2201120121021 has 16 divisors (see below), whose sum is σ = 3070958469120. Its totient is φ = 1399703030000.

The previous prime is 2201120121019. The next prime is 2201120121023. The reversal of 2201120121021 is 1201210211022.

2201120121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2201120121019) and next prime (2201120121023).

It is a cyclic number.

It is not a de Polignac number, because 2201120121021 - 2¹ = 2201120121019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201120121023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44404605 + ... + 44454146.

It is an arithmetic number, because the mean of its divisors is an integer number (191934904320).

Almost surely, 2^{2201120121021} is an apocalyptic number.

It is an amenable number.

2201120121021 is a deficient number, since it is larger than the sum of its proper divisors (869838348099).

2201120121021 is a wasteful number, since it uses less digits than its factorization.

2201120121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88859136.

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

Adding to 2201120121021 its reverse (1201210211022), we get a palindrome (3402330332043).

Subtracting from 2201120121021 its reverse (1201210211022), we obtain a palindrome (999909909999).

The spelling of 2201120121021 in words is "two trillion, two hundred one billion, one hundred twenty million, one hundred twenty-one thousand, twenty-one".