20021212002212 has 12 divisors (see below), whose sum is σ = 35037161308800. Its totient is φ = 10010594485416.

The previous prime is 20021212002079. The next prime is 20021212002251. The reversal of 20021212002212 is 21220021212002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922789 + ... + 6613587.

It is an arithmetic number, because the mean of its divisors is an integer number (2919763442400).

Almost surely, 2^{20021212002212} is an apocalyptic number.

It is an amenable number.

20021212002212 is a deficient number, since it is larger than the sum of its proper divisors (15015949306588).

20021212002212 is a wasteful number, since it uses less digits than its factorization.

20021212002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757850 (or 5757848 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20021212002212 its reverse (21220021212002), we get a palindrome (41241233214214).

It can be divided in two parts, 20021212002 and 212, that multiplied together give a palindrome (4244496944424).

The spelling of 20021212002212 in words is "twenty trillion, twenty-one billion, two hundred twelve million, two thousand, two hundred twelve".