1220148046 has 16 divisors (see below), whose sum is σ = 1974634704. Its totient is φ = 562109184.

The previous prime is 1220148043. The next prime is 1220148049. The reversal of 1220148046 is 6408410221.

It is an interprime number because it is at equal distance from previous prime (1220148043) and next prime (1220148049).

It is a super-2 number, since 2×1220148046² = 2977522508315236232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220148043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28675 + ... + 57118.

It is an arithmetic number, because the mean of its divisors is an integer number (123414669).

Almost surely, 2^1220148046 is an apocalyptic number.

1220148046 is a deficient number, since it is larger than the sum of its proper divisors (754486658).

1220148046 is a wasteful number, since it uses less digits than its factorization.

1220148046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86355.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 1220148046 is about 34930.6176011819. The cubic root of 1220148046 is about 1068.5729501363.

Adding to 1220148046 its reverse (6408410221), we get a palindrome (7628558267).

The spelling of 1220148046 in words is "one billion, two hundred twenty million, one hundred forty-eight thousand, forty-six".