2100212120022 has 64 divisors (see below), whose sum is σ = 4298645707776. Its totient is φ = 683822372480.

The previous prime is 2100212120003. The next prime is 2100212120101. The reversal of 2100212120022 is 2200212120012.

It is a junction number, because it is equal to n+sod(n) for n = 2100212119983 and 2100212120010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96051463 + ... + 96073325.

It is an arithmetic number, because the mean of its divisors is an integer number (67166339184).

Almost surely, 2^{2100212120022} is an apocalyptic number.

2100212120022 is an abundant number, since it is smaller than the sum of its proper divisors (2198433587754).

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

2100212120022 is a wasteful number, since it uses less digits than its factorization.

2100212120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23245.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2100212120022 its reverse (2200212120012), we get a palindrome (4300424240034).

The spelling of 2100212120022 in words is "two trillion, one hundred billion, two hundred twelve million, one hundred twenty thousand, twenty-two".