20103222012 has 48 divisors (see below), whose sum is σ = 47593728000. Its totient is φ = 6603145920.

The previous prime is 20103221981. The next prime is 20103222017. The reversal of 20103222012 is 21022230102.

It is a happy number.

It is a super-2 number, since 2×20103222012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20103221982 and 20103222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103222017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1927989 + ... + 1938387.

It is an arithmetic number, because the mean of its divisors is an integer number (991536000).

Almost surely, 2^20103222012 is an apocalyptic number.

It is an amenable number.

20103222012 is an abundant number, since it is smaller than the sum of its proper divisors (27490505988).

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

20103222012 is a wasteful number, since it uses less digits than its factorization.

20103222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12746 (or 12744 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20103222012 its reverse (21022230102), we get a palindrome (41125452114).

The spelling of 20103222012 in words is "twenty billion, one hundred three million, two hundred twenty-two thousand, twelve".