1220622046 has 12 divisors (see below), whose sum is σ = 2129861088. Its totient is φ = 523123692.

The previous prime is 1220622043. The next prime is 1220622059. The reversal of 1220622046 is 6402260221.

It is a super-2 number, since 2×1220622046² = 2979836358362452232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220622046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220622041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6227566 + ... + 6227761.

It is an arithmetic number, because the mean of its divisors is an integer number (177488424).

Almost surely, 2^1220622046 is an apocalyptic number.

1220622046 is a deficient number, since it is larger than the sum of its proper divisors (909239042).

1220622046 is a wasteful number, since it uses less digits than its factorization.

1220622046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12455343 (or 12455336 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1220622046 is about 34937.4018209712. The cubic root of 1220622046 is about 1068.7113043865.

Adding to 1220622046 its reverse (6402260221), we get a palindrome (7622882267).

The spelling of 1220622046 in words is "one billion, two hundred twenty million, six hundred twenty-two thousand, forty-six".