2111001220212 has 24 divisors (see below), whose sum is σ = 4926207448512. Its totient is φ = 703590225600.

The previous prime is 2111001220187. The next prime is 2111001220217. The reversal of 2111001220212 is 2120221001112.

It is a junction number, because it is equal to n+sod(n) for n = 2111001220191 and 2111001220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111001220217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9491464 + ... + 9711327.

It is an arithmetic number, because the mean of its divisors is an integer number (205258643688).

Almost surely, 2^{2111001220212} is an apocalyptic number.

It is an amenable number.

2111001220212 is an abundant number, since it is smaller than the sum of its proper divisors (2815206228300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111001220212 is a wasteful number, since it uses less digits than its factorization.

2111001220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19211959 (or 19211957 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2111001220212 its reverse (2120221001112), we get a palindrome (4231222221324).

The spelling of 2111001220212 in words is "two trillion, one hundred eleven billion, one million, two hundred twenty thousand, two hundred twelve".