1215070072220 has 48 divisors (see below), whose sum is σ = 2674670489568. Its totient is φ = 463146378240.

The previous prime is 1215070072187. The next prime is 1215070072231. The reversal of 1215070072220 is 222700705121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17194889 + ... + 17265408.

It is an arithmetic number, because the mean of its divisors is an integer number (55722301866).

Almost surely, 2^{1215070072220} is an apocalyptic number.

1215070072220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215070072220 is an abundant number, since it is smaller than the sum of its proper divisors (1459600417348).

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

1215070072220 is a wasteful number, since it uses less digits than its factorization.

1215070072220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34460390 (or 34460388 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

Adding to 1215070072220 its reverse (222700705121), we get a palindrome (1437770777341).

The spelling of 1215070072220 in words is "one trillion, two hundred fifteen billion, seventy million, seventy-two thousand, two hundred twenty".