2120221100212 has 24 divisors (see below), whose sum is σ = 3730746488000. Its totient is φ = 1054298431296.

The previous prime is 2120221100177. The next prime is 2120221100227. The reversal of 2120221100212 is 2120011220212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123288 + ... + 2345680.

Almost surely, 2^{2120221100212} is an apocalyptic number.

It is an amenable number.

2120221100212 is a deficient number, since it is larger than the sum of its proper divisors (1610525387788).

2120221100212 is a wasteful number, since it uses less digits than its factorization.

2120221100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224775 (or 1224773 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120221100212 its reverse (2120011220212), we get a palindrome (4240232320424).

The spelling of 2120221100212 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred thousand, two hundred twelve".