1011200012 has 6 divisors (see below), whose sum is σ = 1769600028. Its totient is φ = 505600004.

The previous prime is 1011200011. The next prime is 1011200041. The reversal of 1011200012 is 2100021101.

It is not an unprimeable number, because it can be changed into a prime (1011200011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126399998 + ... + 126400005.

It is an arithmetic number, because the mean of its divisors is an integer number (294933338).

Almost surely, 2^1011200012 is an apocalyptic number.

It is an amenable number.

1011200012 is a deficient number, since it is larger than the sum of its proper divisors (758400016).

1011200012 is a wasteful number, since it uses less digits than its factorization.

1011200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252800007 (or 252800005 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1011200012 is about 31799.3712516458. The cubic root of 1011200012 is about 1003.7194856076.

Adding to 1011200012 its reverse (2100021101), we get a palindrome (3111221113).

The spelling of 1011200012 in words is "one billion, eleven million, two hundred thousand, twelve".