11211112010121 has 8 divisors (see below), whose sum is σ = 14948166895104. Its totient is φ = 7474065899280.

The previous prime is 11211112010083. The next prime is 11211112010143. The reversal of 11211112010121 is 12101021111211.

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

It is not a de Polignac number, because 11211112010121 - 2⁶ = 11211112010057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11211112010121.

It is not an unprimeable number, because it can be changed into a prime (11211112010621) 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, 1855711 + ... + 5085851.

It is an arithmetic number, because the mean of its divisors is an integer number (1868520861888).

Almost surely, 2^{11211112010121} is an apocalyptic number.

It is an amenable number.

11211112010121 is a deficient number, since it is larger than the sum of its proper divisors (3737054884983).

11211112010121 is a wasteful number, since it uses less digits than its factorization.

11211112010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387071.

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

Adding to 11211112010121 its reverse (12101021111211), we get a palindrome (23312133121332).

The spelling of 11211112010121 in words is "eleven trillion, two hundred eleven billion, one hundred twelve million, ten thousand, one hundred twenty-one".