10111121210121 has 32 divisors (see below), whose sum is σ = 13608022965888. Its totient is φ = 6677761305600.

The previous prime is 10111121210107. The next prime is 10111121210131. The reversal of 10111121210121 is 12101212111101.

It is not a de Polignac number, because 10111121210121 - 2²² = 10111117015817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10111121210121.

It is not an unprimeable number, because it can be changed into a prime (10111121210101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1021217271 + ... + 1021227171.

It is an arithmetic number, because the mean of its divisors is an integer number (425250717684).

Almost surely, 2^{10111121210121} is an apocalyptic number.

It is an amenable number.

10111121210121 is a deficient number, since it is larger than the sum of its proper divisors (3496901755767).

10111121210121 is a wasteful number, since it uses less digits than its factorization.

10111121210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16601.

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

Adding to 10111121210121 its reverse (12101212111101), we get a palindrome (22212333321222).

The spelling of 10111121210121 in words is "ten trillion, one hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-one".