1220012412 has 24 divisors (see below), whose sum is σ = 3014148816. Its totient is φ = 382748928.

The previous prime is 1220012411. The next prime is 1220012467. The reversal of 1220012412 is 2142100221.

It is a junction number, because it is equal to n+sod(n) for n = 1220012391 and 1220012400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220012411) 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, 2990023 + ... + 2990430.

It is an arithmetic number, because the mean of its divisors is an integer number (125589534).

Almost surely, 2^1220012412 is an apocalyptic number.

1220012412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220012412 is an abundant number, since it is smaller than the sum of its proper divisors (1794136404).

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

1220012412 is a wasteful number, since it uses less digits than its factorization.

1220012412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980477 (or 5980475 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1220012412 is about 34928.6760699572. The cubic root of 1220012412 is about 1068.5333537953.

Adding to 1220012412 its reverse (2142100221), we get a palindrome (3362112633).

The spelling of 1220012412 in words is "one billion, two hundred twenty million, twelve thousand, four hundred twelve".