1011200001212 has 24 divisors (see below), whose sum is σ = 1854673704576. Its totient is φ = 481486908848.

The previous prime is 1011200001197. The next prime is 1011200001239. The reversal of 1011200001212 is 2121000021101.

It is a super-2 number, since 2×1011200001212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011200001193 and 1011200001202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24189038 + ... + 24230805.

It is an arithmetic number, because the mean of its divisors is an integer number (77278071024).

Almost surely, 2^{1011200001212} is an apocalyptic number.

It is an amenable number.

1011200001212 is a deficient number, since it is larger than the sum of its proper divisors (843473703364).

1011200001212 is a wasteful number, since it uses less digits than its factorization.

1011200001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48420097 (or 48420095 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1011200001212 its reverse (2121000021101), we get a palindrome (3132200022313).

The spelling of 1011200001212 in words is "one trillion, eleven billion, two hundred million, one thousand, two hundred twelve".