1220022313400 has 48 divisors (see below), whose sum is σ = 3094420236840. Its totient is φ = 443644476800.

The previous prime is 1220022313381. The next prime is 1220022313439. The reversal of 1220022313400 is 43132200221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 277275599 + ... + 277279998.

Almost surely, 2^{1220022313400} is an apocalyptic number.

1220022313400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220022313400 is an abundant number, since it is smaller than the sum of its proper divisors (1874397923440).

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

1220022313400 is a wasteful number, since it uses less digits than its factorization.

1220022313400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554555624 (or 554555615 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1220022313400 its reverse (43132200221), we get a palindrome (1263154513621).

The spelling of 1220022313400 in words is "one trillion, two hundred twenty billion, twenty-two million, three hundred thirteen thousand, four hundred".