1220072069 has 8 divisors (see below), whose sum is σ = 1224119232. Its totient is φ = 1216032480.

The previous prime is 1220072057. The next prime is 1220072071. The reversal of 1220072069 is 9602700221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220072069 - 2¹² = 1220067973 is a prime.

It is a super-2 number, since 2×1220072069² = 2977151707107881522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220072039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552722 + ... + 554924.

It is an arithmetic number, because the mean of its divisors is an integer number (153014904).

Almost surely, 2^1220072069 is an apocalyptic number.

It is an amenable number.

1220072069 is a deficient number, since it is larger than the sum of its proper divisors (4047163).

1220072069 is a wasteful number, since it uses less digits than its factorization.

1220072069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1220072069 is about 34929.5300426444. The cubic root of 1220072069 is about 1068.5507701360.

The spelling of 1220072069 in words is "one billion, two hundred twenty million, seventy-two thousand, sixty-nine".