2101211100212 has 48 divisors (see below), whose sum is σ = 4288438560000. Its totient is φ = 900465989472.

The previous prime is 2101211100137. The next prime is 2101211100227. The reversal of 2101211100212 is 2120011121012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31068089 + ... + 31135647.

It is an arithmetic number, because the mean of its divisors is an integer number (89342470000).

Almost surely, 2^{2101211100212} is an apocalyptic number.

It is an amenable number.

2101211100212 is an abundant number, since it is smaller than the sum of its proper divisors (2187227459788).

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

2101211100212 is a wasteful number, since it uses less digits than its factorization.

2101211100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90253 (or 90237 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2101211100212 its reverse (2120011121012), we get a palindrome (4221222221224).

The spelling of 2101211100212 in words is "two trillion, one hundred one billion, two hundred eleven million, one hundred thousand, two hundred twelve".