20011012202222 has 16 divisors (see below), whose sum is σ = 31596424031760. Its totient is φ = 9478873824192.

The previous prime is 20011012202219. The next prime is 20011012202249. The reversal of 20011012202222 is 22220221011002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20011012202222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21945548 + ... + 22839200.

It is an arithmetic number, because the mean of its divisors is an integer number (1974776501985).

Almost surely, 2^{20011012202222} is an apocalyptic number.

20011012202222 is a deficient number, since it is larger than the sum of its proper divisors (11585411829538).

20011012202222 is a wasteful number, since it uses less digits than its factorization.

20011012202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482947.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20011012202222 its reverse (22220221011002), we get a palindrome (42231233213224).

The spelling of 20011012202222 in words is "twenty trillion, eleven billion, twelve million, two hundred two thousand, two hundred twenty-two".