10121001021111 has 32 divisors (see below), whose sum is σ = 15043750410240. Its totient is φ = 6023030850144.

The previous prime is 10121001021107. The next prime is 10121001021139. The reversal of 10121001021111 is 11112010012101.

It is not a de Polignac number, because 10121001021111 - 2² = 10121001021107 is a prime.

It is a super-3 number, since 3×10121001021111³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121001011111) 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, 57524565 + ... + 57700238.

It is an arithmetic number, because the mean of its divisors is an integer number (470117200320).

Almost surely, 2^{10121001021111} is an apocalyptic number.

10121001021111 is a deficient number, since it is larger than the sum of its proper divisors (4922749389129).

10121001021111 is a wasteful number, since it uses less digits than its factorization.

10121001021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115224915.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 10121001021111 its reverse (11112010012101), we get a palindrome (21233011033212).

The spelling of 10121001021111 in words is "ten trillion, one hundred twenty-one billion, one million, twenty-one thousand, one hundred eleven".