1220033213400 has 48 divisors (see below), whose sum is σ = 3782102963400. Its totient is φ = 325342190080.

The previous prime is 1220033213393. The next prime is 1220033213423. The reversal of 1220033213400 is 43123300221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016693745 + ... + 1016694944.

Almost surely, 2^{1220033213400} is an apocalyptic number.

1220033213400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220033213400 is an abundant number, since it is smaller than the sum of its proper divisors (2562069750000).

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

1220033213400 is a wasteful number, since it uses less digits than its factorization.

1220033213400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033388708 (or 2033388699 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220033213400 its reverse (43123300221), we get a palindrome (1263156513621).

The spelling of 1220033213400 in words is "one trillion, two hundred twenty billion, thirty-three million, two hundred thirteen thousand, four hundred".