2101102212 has 24 divisors (see below), whose sum is σ = 5348260512. Its totient is φ = 636697600.

The previous prime is 2101102189. The next prime is 2101102217. The reversal of 2101102212 is 2122011012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2101102217) 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, 7958589 + ... + 7958852.

It is an arithmetic number, because the mean of its divisors is an integer number (222844188).

Almost surely, 2^2101102212 is an apocalyptic number.

2101102212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101102212 is an abundant number, since it is smaller than the sum of its proper divisors (3247158300).

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

2101102212 is a wasteful number, since it uses less digits than its factorization.

2101102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15917459 (or 15917457 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2101102212 is about 45837.7814908182. The cubic root of 2101102212 is about 1280.8031686148.

Adding to 2101102212 its reverse (2122011012), we get a palindrome (4223113224).

It can be divided in two parts, 2101 and 102212, that multiplied together give a palindrome (214747412).

The spelling of 2101102212 in words is "two billion, one hundred one million, one hundred two thousand, two hundred twelve".