2101012212111 has 8 divisors (see below), whose sum is σ = 2839724268720. Its totient is φ = 1381487481792.

The previous prime is 2101012212037. The next prime is 2101012212133. The reversal of 2101012212111 is 1112122101012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2101012212111 - 2¹⁷ = 2101012081039 is a prime.

It is a super-3 number, since 3×2101012212111³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101012216111) 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, 4796831316 + ... + 4796831753.

It is an arithmetic number, because the mean of its divisors is an integer number (354965533590).

Almost surely, 2^{2101012212111} is an apocalyptic number.

2101012212111 is a deficient number, since it is larger than the sum of its proper divisors (738712056609).

2101012212111 is an equidigital number, since it uses as much as digits as its factorization.

2101012212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9593663145.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2101012212111 its reverse (1112122101012), we get a palindrome (3213134313123).

The spelling of 2101012212111 in words is "two trillion, one hundred one billion, twelve million, two hundred twelve thousand, one hundred eleven".