1215002043222 has 64 divisors (see below), whose sum is σ = 2696900935680. Its totient is φ = 361841760800.

The previous prime is 1215002043187. The next prime is 1215002043287. The reversal of 1215002043222 is 2223402005121.

It is a super-2 number, since 2×1215002043222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1215002043192 and 1215002043201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465679 + ... + 1626917.

It is an arithmetic number, because the mean of its divisors is an integer number (42139077120).

Almost surely, 2^{1215002043222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215002043222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1348450467840).

1215002043222 is an abundant number, since it is smaller than the sum of its proper divisors (1481898892458).

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

1215002043222 is a wasteful number, since it uses less digits than its factorization.

1215002043222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161529.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 1215002043222 its reverse (2223402005121), we get a palindrome (3438404048343).

The spelling of 1215002043222 in words is "one trillion, two hundred fifteen billion, two million, forty-three thousand, two hundred twenty-two".