2210330520021 has 32 divisors (see below), whose sum is σ = 3205801381888. Its totient is φ = 1346538816000.

The previous prime is 2210330519983. The next prime is 2210330520023. The reversal of 2210330520021 is 1200250330122.

It is not a de Polignac number, because 2210330520021 - 2¹⁰ = 2210330518997 is a prime.

It is a super-2 number, since 2×2210330520021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2210330520021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210330520023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1775271 + ... + 2751771.

It is an arithmetic number, because the mean of its divisors is an integer number (100181293184).

Almost surely, 2^{2210330520021} is an apocalyptic number.

It is an amenable number.

2210330520021 is a deficient number, since it is larger than the sum of its proper divisors (995470861867).

2210330520021 is a wasteful number, since it uses less digits than its factorization.

2210330520021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977101.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 2210330520021 its reverse (1200250330122), we get a palindrome (3410580850143).

The spelling of 2210330520021 in words is "two trillion, two hundred ten billion, three hundred thirty million, five hundred twenty thousand, twenty-one".