22012210012 has 24 divisors (see below), whose sum is σ = 41489280000. Its totient is φ = 10158323136.

The previous prime is 22012209991. The next prime is 22012210019. The reversal of 22012210012 is 21001221022.

It is a happy number.

It is a super-2 number, since 2×22012210012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 22012209974 and 22012210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012210019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580614 + ... + 617362.

It is an arithmetic number, because the mean of its divisors is an integer number (1728720000).

Almost surely, 2^22012210012 is an apocalyptic number.

It is an amenable number.

22012210012 is a deficient number, since it is larger than the sum of its proper divisors (19477069988).

22012210012 is a wasteful number, since it uses less digits than its factorization.

22012210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48285 (or 48283 counting only the distinct ones).

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

Adding to 22012210012 its reverse (21001221022), we get a palindrome (43013431034).

The spelling of 22012210012 in words is "twenty-two billion, twelve million, two hundred ten thousand, twelve".