1200887222500 has 405 divisors, whose sum is σ = 3188136283101. Its totient is φ = 394506000000.

The previous prime is 1200887222417. The next prime is 1200887222533. The reversal of 1200887222500 is 52227880021.

It is a happy number.

The square root of 1200887222500 is 1095850.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 259164482724 + 941722739776 = 509082^2 + 970424^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1200887222500.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 11889972450 + ... + 11889972550.

Almost surely, 2^{1200887222500} is an apocalyptic number.

1200887222500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200887222500 is the 1095850-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200887222500

1200887222500 is an abundant number, since it is smaller than the sum of its proper divisors (1987249060601).

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

1200887222500 is an equidigital number, since it uses as much as digits as its factorization.

1200887222500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 1200887222500 in words is "one trillion, two hundred billion, eight hundred eighty-seven million, two hundred twenty-two thousand, five hundred".