20120220120212 has 12 divisors (see below), whose sum is σ = 35210416770816. Its totient is φ = 10060101042840.

The previous prime is 20120220120193. The next prime is 20120220120233. The reversal of 20120220120212 is 21202102202102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6865037 + ... + 9347147.

It is an arithmetic number, because the mean of its divisors is an integer number (2934201397568).

Almost surely, 2^{20120220120212} is an apocalyptic number.

It is an amenable number.

20120220120212 is a deficient number, since it is larger than the sum of its proper divisors (15090196650604).

20120220120212 is a wasteful number, since it uses less digits than its factorization.

20120220120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508638 (or 4508636 counting only the distinct ones).

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

Adding to 20120220120212 its reverse (21202102202102), we get a palindrome (41322322322314).

The spelling of 20120220120212 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, one hundred twenty thousand, two hundred twelve".