210022421224 has 128 divisors (see below), whose sum is σ = 537767942400. Its totient is φ = 74357821440.

The previous prime is 210022421221. The next prime is 210022421227. The reversal of 210022421224 is 422124220012.

It is an interprime number because it is at equal distance from previous prime (210022421221) and next prime (210022421227).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 210022421195 and 210022421204.

It is not an unprimeable number, because it can be changed into a prime (210022421221) 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, 42099 + ... + 649474.

It is an arithmetic number, because the mean of its divisors is an integer number (4201312050).

Almost surely, 2^210022421224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210022421224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268883971200).

210022421224 is an abundant number, since it is smaller than the sum of its proper divisors (327745521176).

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

210022421224 is a wasteful number, since it uses less digits than its factorization.

210022421224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691643 (or 691639 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 210022421224 its reverse (422124220012), we get a palindrome (632146641236).

The spelling of 210022421224 in words is "two hundred ten billion, twenty-two million, four hundred twenty-one thousand, two hundred twenty-four".