2120191920212 has 24 divisors (see below), whose sum is σ = 3722069505000. Its totient is φ = 1056746221056.

The previous prime is 2120191920199. The next prime is 2120191920233. The reversal of 2120191920212 is 2120291910212.

It can be written as a sum of positive squares in 4 ways, for example, as 695162407696 + 1425029512516 = 833764^2 + 1193746^2 .

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 7 ways as a sum of consecutive naturals, for example, 2776664 + ... + 3456912.

It is an arithmetic number, because the mean of its divisors is an integer number (155086229375).

Almost surely, 2^{2120191920212} is an apocalyptic number.

It is an amenable number.

2120191920212 is a deficient number, since it is larger than the sum of its proper divisors (1601877584788).

2120191920212 is a wasteful number, since it uses less digits than its factorization.

2120191920212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682715 (or 682713 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

It can be divided in two parts, 2120191 and 920212, that added together give a palindrome (3040403).

The spelling of 2120191920212 in words is "two trillion, one hundred twenty billion, one hundred ninety-one million, nine hundred twenty thousand, two hundred twelve".