210122040220440 has 64 divisors (see below), whose sum is σ = 630368328879360. Its totient is φ = 56032347772800.

The previous prime is 210122040220429. The next prime is 210122040220441. The reversal of 210122040220440 is 44022040221012.

It is a happy number.

210122040220440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 210122040220440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122040220441) 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, 33101227 + ... + 38935013.

It is an arithmetic number, because the mean of its divisors is an integer number (9849505138740).

Almost surely, 2^{210122040220440} is an apocalyptic number.

210122040220440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210122040220440 is an abundant number, since it is smaller than the sum of its proper divisors (420246288658920).

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

210122040220440 is a wasteful number, since it uses less digits than its factorization.

210122040220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6133952 (or 6133948 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 210122040220440 its reverse (44022040221012), we get a palindrome (254144080441452).

The spelling of 210122040220440 in words is "two hundred ten trillion, one hundred twenty-two billion, forty million, two hundred twenty thousand, four hundred forty".