1012200022012 has 12 divisors (see below), whose sum is σ = 1771361869536. Its totient is φ = 506096630720.

The previous prime is 1012200021997. The next prime is 1012200022013. The reversal of 1012200022012 is 2102200022101.

It is a happy number.

It is a super-2 number, since 2×1012200022012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012200021983 and 1012200022001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012200022013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97933 + ... + 1426180.

It is an arithmetic number, because the mean of its divisors is an integer number (147613489128).

Almost surely, 2^{1012200022012} is an apocalyptic number.

It is an amenable number.

1012200022012 is a deficient number, since it is larger than the sum of its proper divisors (759161847524).

1012200022012 is a wasteful number, since it uses less digits than its factorization.

1012200022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690148 (or 1690146 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1012200022012 its reverse (2102200022101), we get a palindrome (3114400044113).

The spelling of 1012200022012 in words is "one trillion, twelve billion, two hundred million, twenty-two thousand, twelve".