2210121032020 has 96 divisors (see below), whose sum is σ = 5336948292480. Its totient is φ = 760341634560.

The previous prime is 2210121032017. The next prime is 2210121032029. The reversal of 2210121032020 is 202301210122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2210121031985 and 2210121032003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210121032029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2703274 + ... + 3424606.

It is an arithmetic number, because the mean of its divisors is an integer number (55593211380).

Almost surely, 2^{2210121032020} is an apocalyptic number.

2210121032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2210121032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668474146240).

2210121032020 is an abundant number, since it is smaller than the sum of its proper divisors (3126827260460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2210121032020 is a wasteful number, since it uses less digits than its factorization.

2210121032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722105 (or 722103 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2210121032020 its reverse (202301210122), we get a palindrome (2412422242142).

The spelling of 2210121032020 in words is "two trillion, two hundred ten billion, one hundred twenty-one million, thirty-two thousand, twenty".