110212211020121 has 12 divisors (see below), whose sum is σ = 128323338837732. Its totient is φ = 94381179748128.

The previous prime is 110212211020117. The next prime is 110212211020147. The reversal of 110212211020121 is 121020112212011.

It can be written as a sum of positive squares in 2 ways, for example, as 63421138860121 + 46791072160000 = 7963739^2 + 6840400^2 .

It is not a de Polignac number, because 110212211020121 - 2² = 110212211020117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110212211020121.

It is not an unprimeable number, because it can be changed into a prime (110212211020621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1028870870 + ... + 1028977983.

It is an arithmetic number, because the mean of its divisors is an integer number (10693611569811).

Almost surely, 2^{110212211020121} is an apocalyptic number.

It is an amenable number.

110212211020121 is a deficient number, since it is larger than the sum of its proper divisors (18111127817611).

110212211020121 is a wasteful number, since it uses less digits than its factorization.

110212211020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057849960 (or 2057849953 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 110212211020121 its reverse (121020112212011), we get a palindrome (231232323232132).

The spelling of 110212211020121 in words is "one hundred ten trillion, two hundred twelve billion, two hundred eleven million, twenty thousand, one hundred twenty-one".