1220054015 has 16 divisors (see below), whose sum is σ = 1501004736. Its totient is φ = 951456000.

The previous prime is 1220054009. The next prime is 1220054027. The reversal of 1220054015 is 5104500221.

It is not a de Polignac number, because 1220054015 - 2⁴ = 1220053999 is a prime.

It is a Duffinian number.

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, 476990 + ... + 479540.

It is an arithmetic number, because the mean of its divisors is an integer number (93812796).

Almost surely, 2^1220054015 is an apocalyptic number.

1220054015 is a deficient number, since it is larger than the sum of its proper divisors (280950721).

1220054015 is a wasteful number, since it uses less digits than its factorization.

1220054015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1220054015 is about 34929.2716070633. The cubic root of 1220054015 is about 1068.5454994881.

Adding to 1220054015 its reverse (5104500221), we get a palindrome (6324554236).

The spelling of 1220054015 in words is "one billion, two hundred twenty million, fifty-four thousand, fifteen".