1011220001200 has 60 divisors (see below), whose sum is σ = 2445545311888. Its totient is φ = 401809248000.

The previous prime is 1011220001189. The next prime is 1011220001237. The reversal of 1011220001200 is 21000221101.

1011220001200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 8310627 + ... + 8431426.

Almost surely, 2^{1011220001200} is an apocalyptic number.

1011220001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011220001200 is an abundant number, since it is smaller than the sum of its proper divisors (1434325310688).

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

1011220001200 is a wasteful number, since it uses less digits than its factorization.

1011220001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16742222 (or 16742211 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1011220001200 its reverse (21000221101), we get a palindrome (1032220222301).

The spelling of 1011220001200 in words is "one trillion, eleven billion, two hundred twenty million, one thousand, two hundred".