2101021112212 has 24 divisors (see below), whose sum is σ = 4011077018592. Its totient is φ = 955000855200.

The previous prime is 2101021112209. The next prime is 2101021112219. The reversal of 2101021112212 is 2122111201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101021112219) 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, 9399387 + ... + 9620317.

It is an arithmetic number, because the mean of its divisors is an integer number (167128209108).

Almost surely, 2^{2101021112212} is an apocalyptic number.

2101021112212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101021112212 is a deficient number, since it is larger than the sum of its proper divisors (1910055906380).

2101021112212 is a wasteful number, since it uses less digits than its factorization.

2101021112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437079 (or 437077 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2101021112212 its reverse (2122111201012), we get a palindrome (4223132313224).

The spelling of 2101021112212 in words is "two trillion, one hundred one billion, twenty-one million, one hundred twelve thousand, two hundred twelve".