211012110002121 has 8 divisors (see below), whose sum is σ = 281434711606464. Its totient is φ = 140632124199600.

The previous prime is 211012110002101. The next prime is 211012110002143. The reversal of 211012110002121 is 121200011210112.

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 211012110002121 - 2⁷ = 211012110001993 is a prime.

It is a super-2 number, since 2×211012110002121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211012110002121.

It is not an unprimeable number, because it can be changed into a prime (211012110002101) 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, 10653938901 + ... + 10653958706.

It is an arithmetic number, because the mean of its divisors is an integer number (35179338950808).

Almost surely, 2^{211012110002121} is an apocalyptic number.

It is an amenable number.

211012110002121 is a deficient number, since it is larger than the sum of its proper divisors (70422601604343).

211012110002121 is a wasteful number, since it uses less digits than its factorization.

211012110002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21307900911.

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

Adding to 211012110002121 its reverse (121200011210112), we get a palindrome (332212121212233).

The spelling of 211012110002121 in words is "two hundred eleven trillion, twelve billion, one hundred ten million, two thousand, one hundred twenty-one".