20310002212 has 6 divisors (see below), whose sum is σ = 35542503878. Its totient is φ = 10155001104.

The previous prime is 20310002137. The next prime is 20310002227. The reversal of 20310002212 is 21220001302.

It can be written as a sum of positive squares in only one way, i.e., 17386004736 + 2923997476 = 131856^2 + 54074^2 .

It is a super-3 number, since 3×20310002212³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20310002192 and 20310002201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2538750273 + ... + 2538750280.

Almost surely, 2^20310002212 is an apocalyptic number.

It is an amenable number.

20310002212 is a deficient number, since it is larger than the sum of its proper divisors (15232501666).

20310002212 is a wasteful number, since it uses less digits than its factorization.

20310002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077500557 (or 5077500555 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20310002212 its reverse (21220001302), we get a palindrome (41530003514).

The spelling of 20310002212 in words is "twenty billion, three hundred ten million, two thousand, two hundred twelve".