1100212505450 has 12 divisors (see below), whose sum is σ = 2046395260230. Its totient is φ = 440085002160.

The previous prime is 1100212505387. The next prime is 1100212505461. The reversal of 1100212505450 is 545052120011.

It can be written as a sum of positive squares in 3 ways, for example, as 895784638681 + 204427866769 = 946459^2 + 452137^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11002125005 + ... + 11002125104.

Almost surely, 2^{1100212505450} is an apocalyptic number.

1100212505450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1100212505450 is a deficient number, since it is larger than the sum of its proper divisors (946182754780).

1100212505450 is a wasteful number, since it uses less digits than its factorization.

1100212505450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22004250121 (or 22004250116 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 1100212505450 its reverse (545052120011), we get a palindrome (1645264625461).

The spelling of 1100212505450 in words is "one trillion, one hundred billion, two hundred twelve million, five hundred five thousand, four hundred fifty".