20201212222 has 36 divisors (see below), whose sum is σ = 31336296336. Its totient is φ = 9767007960.

The previous prime is 20201212211. The next prime is 20201212231. The reversal of 20201212222 is 22221210202.

It is a junction number, because it is equal to n+sod(n) for n = 20201212196 and 20201212205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46870347 + ... + 46870777.

It is an arithmetic number, because the mean of its divisors is an integer number (870452676).

Almost surely, 2^20201212222 is an apocalyptic number.

20201212222 is a deficient number, since it is larger than the sum of its proper divisors (11135084114).

20201212222 is an equidigital number, since it uses as much as digits as its factorization.

20201212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 583 counting only the distinct ones).

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

Adding to 20201212222 its reverse (22221210202), we get a palindrome (42422422424).

The spelling of 20201212222 in words is "twenty billion, two hundred one million, two hundred twelve thousand, two hundred twenty-two".