20012212222 has 8 divisors (see below), whose sum is σ = 30022454016. Its totient is φ = 10004727552.

The previous prime is 20012212151. The next prime is 20012212261. The reversal of 20012212222 is 22221221002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20012212196 and 20012212205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671038 + ... + 700225.

It is an arithmetic number, because the mean of its divisors is an integer number (3752806752).

Almost surely, 2^20012212222 is an apocalyptic number.

20012212222 is a deficient number, since it is larger than the sum of its proper divisors (10010241794).

20012212222 is a wasteful number, since it uses less digits than its factorization.

20012212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378562.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20012212222 its reverse (22221221002), we get a palindrome (42233433224).

The spelling of 20012212222 in words is "twenty billion, twelve million, two hundred twelve thousand, two hundred twenty-two".