20012022222 has 16 divisors (see below), whose sum is σ = 40066053840. Its totient is φ = 6663672512.

The previous prime is 20012022221. The next prime is 20012022227. The reversal of 20012022222 is 22222021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744197 + ... + 1755632.

It is an arithmetic number, because the mean of its divisors is an integer number (2504128365).

Almost surely, 2^20012022222 is an apocalyptic number.

20012022222 is an abundant number, since it is smaller than the sum of its proper divisors (20054031618).

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

20012022222 is a wasteful number, since it uses less digits than its factorization.

20012022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500787.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20012022222 its reverse (22222021002), we get a palindrome (42234043224).

The spelling of 20012022222 in words is "twenty billion, twelve million, twenty-two thousand, two hundred twenty-two".