1220422043015 has 16 divisors (see below), whose sum is σ = 1685938612032. Its totient is φ = 830752353024.

The previous prime is 1220422043003. The next prime is 1220422043041. The reversal of 1220422043015 is 5103402240221.

It is a cyclic number.

It is not a de Polignac number, because 1220422043015 - 2⁴ = 1220422042999 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, 127255064 + ... + 127264653.

It is an arithmetic number, because the mean of its divisors is an integer number (105371163252).

Almost surely, 2^{1220422043015} is an apocalyptic number.

1220422043015 is a deficient number, since it is larger than the sum of its proper divisors (465516569017).

1220422043015 is a wasteful number, since it uses less digits than its factorization.

1220422043015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254519866.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 1220422043015 its reverse (5103402240221), we get a palindrome (6323824283236).

The spelling of 1220422043015 in words is "one trillion, two hundred twenty billion, four hundred twenty-two million, forty-three thousand, fifteen".