1222018470900 has 54 divisors (see below), whose sum is σ = 3830349009942. Its totient is φ = 325871592000.

The previous prime is 1222018470899. The next prime is 1222018470923. The reversal of 1222018470900 is 90748102221.

It can be written as a sum of positive squares in 3 ways, for example, as 10900612836 + 1211117858064 = 104406^2 + 1100508^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 678898251 + ... + 678900050.

It is an arithmetic number, because the mean of its divisors is an integer number (70932389073).

Almost surely, 2^{1222018470900} is an apocalyptic number.

1222018470900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222018470900 is an abundant number, since it is smaller than the sum of its proper divisors (2608330539042).

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

1222018470900 is a wasteful number, since it uses less digits than its factorization.

1222018470900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357798321 (or 1357798311 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 1222018470900 in words is "one trillion, two hundred twenty-two billion, eighteen million, four hundred seventy thousand, nine hundred".