2100022001212 has 48 divisors (see below), whose sum is σ = 3873692067840. Its totient is φ = 993403300032.

The previous prime is 2100022001197. The next prime is 2100022001213. The reversal of 2100022001212 is 2121002200012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2100022001192 and 2100022001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100022001213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191375358 + ... + 191386330.

It is an arithmetic number, because the mean of its divisors is an integer number (80701918080).

Almost surely, 2^{2100022001212} is an apocalyptic number.

It is an amenable number.

2100022001212 is a deficient number, since it is larger than the sum of its proper divisors (1773670066628).

2100022001212 is a wasteful number, since it uses less digits than its factorization.

2100022001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14170 (or 14168 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2100022001212 its reverse (2121002200012), we get a palindrome (4221024201224).

The spelling of 2100022001212 in words is "two trillion, one hundred billion, twenty-two million, one thousand, two hundred twelve".