1222415020 has 24 divisors (see below), whose sum is σ = 2568518064. Its totient is φ = 488690496.

The previous prime is 1222414987. The next prime is 1222415069. The reversal of 1222415020 is 205142221.

It is a super-2 number, since 2×1222415020² = 2988596962243200800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21259 + ... + 53821.

It is an arithmetic number, because the mean of its divisors is an integer number (107021586).

Almost surely, 2^1222415020 is an apocalyptic number.

1222415020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222415020 is an abundant number, since it is smaller than the sum of its proper divisors (1346103044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222415020 is a wasteful number, since it uses less digits than its factorization.

1222415020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34449 (or 34447 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1222415020 is about 34963.0522122998. The cubic root of 1222415020 is about 1069.2343257238.

Adding to 1222415020 its reverse (205142221), we get a palindrome (1427557241).

It can be divided in two parts, 122 and 2415020, that added together give a palindrome (2415142).

The spelling of 1222415020 in words is "one billion, two hundred twenty-two million, four hundred fifteen thousand, twenty".