211012121100111 has 8 divisors (see below), whose sum is σ = 288953535200304. Its totient is φ = 136872727200000.

The previous prime is 211012121100097. The next prime is 211012121100119. The reversal of 211012121100111 is 111001121210112.

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

It is not a de Polignac number, because 211012121100111 - 2²¹ = 211012119002959 is a prime.

It is a super-2 number, since 2×211012121100111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211012121100119) 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, 950505049890 + ... + 950505050111.

It is an arithmetic number, because the mean of its divisors is an integer number (36119191900038).

Almost surely, 2^{211012121100111} is an apocalyptic number.

211012121100111 is a deficient number, since it is larger than the sum of its proper divisors (77941414100193).

211012121100111 is a wasteful number, since it uses less digits than its factorization.

211012121100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901010100041.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211012121100111 its reverse (111001121210112), we get a palindrome (322013242310223).

The spelling of 211012121100111 in words is "two hundred eleven trillion, twelve billion, one hundred twenty-one million, one hundred thousand, one hundred eleven".