20301222212 has 6 divisors (see below), whose sum is σ = 35527138878. Its totient is φ = 10150611104.

The previous prime is 20301222211. The next prime is 20301222241. The reversal of 20301222212 is 21222210302.

It can be written as a sum of positive squares in only one way, i.e., 16781647936 + 3519574276 = 129544^2 + 59326^2 .

It is not an unprimeable number, because it can be changed into a prime (20301222211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2537652773 + ... + 2537652780.

It is an arithmetic number, because the mean of its divisors is an integer number (5921189813).

Almost surely, 2^20301222212 is an apocalyptic number.

It is an amenable number.

20301222212 is a deficient number, since it is larger than the sum of its proper divisors (15225916666).

20301222212 is a wasteful number, since it uses less digits than its factorization.

20301222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075305557 (or 5075305555 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20301222212 its reverse (21222210302), we get a palindrome (41523432514).

The spelling of 20301222212 in words is "twenty billion, three hundred one million, two hundred twenty-two thousand, two hundred twelve".