20021103222212 has 24 divisors (see below), whose sum is σ = 35365231591872. Its totient is φ = 9917146288800.

The previous prime is 20021103222163. The next prime is 20021103222229. The reversal of 20021103222212 is 21222230112002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49165739 + ... + 49571282.

It is an arithmetic number, because the mean of its divisors is an integer number (1473551316328).

Almost surely, 2^{20021103222212} is an apocalyptic number.

It is an amenable number.

20021103222212 is a deficient number, since it is larger than the sum of its proper divisors (15344128369660).

20021103222212 is a wasteful number, since it uses less digits than its factorization.

20021103222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98737499 (or 98737497 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20021103222212 its reverse (21222230112002), we get a palindrome (41243333334214).

The spelling of 20021103222212 in words is "twenty trillion, twenty-one billion, one hundred three million, two hundred twenty-two thousand, two hundred twelve".