15222022421430 has 256 divisors, whose sum is σ = 41200208603136. Its totient is φ = 3566885253120.

The previous prime is 15222022421429. The next prime is 15222022421449. The reversal of 15222022421430 is 3412422022251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4040885407 + ... + 4040889173.

It is an arithmetic number, because the mean of its divisors is an integer number (160938314856).

Almost surely, 2^{15222022421430} is an apocalyptic number.

15222022421430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15222022421430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20600104301568).

15222022421430 is an abundant number, since it is smaller than the sum of its proper divisors (25978186181706).

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

15222022421430 is a wasteful number, since it uses less digits than its factorization.

15222022421430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 15222022421430 its reverse (3412422022251), we get a palindrome (18634444443681).

The spelling of 15222022421430 in words is "fifteen trillion, two hundred twenty-two billion, twenty-two million, four hundred twenty-one thousand, four hundred thirty".