10121021102111 has 16 divisors (see below), whose sum is σ = 11037716951040. Its totient is φ = 9255585491040.

The previous prime is 10121021102063. The next prime is 10121021102119. The reversal of 10121021102111 is 11120112012101.

It is a cyclic number.

It is not a de Polignac number, because 10121021102111 - 2¹⁸ = 10121020839967 is a prime.

It is a super-2 number, since 2×10121021102111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121021102119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119724641 + ... + 119809146.

It is an arithmetic number, because the mean of its divisors is an integer number (689857309440).

Almost surely, 2^{10121021102111} is an apocalyptic number.

10121021102111 is a deficient number, since it is larger than the sum of its proper divisors (916695848929).

10121021102111 is a wasteful number, since it uses less digits than its factorization.

10121021102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239533894.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10121021102111 its reverse (11120112012101), we get a palindrome (21241133114212).

The spelling of 10121021102111 in words is "ten trillion, one hundred twenty-one billion, twenty-one million, one hundred two thousand, one hundred eleven".