10111221212102 has 16 divisors (see below), whose sum is σ = 15314384640672. Its totient is φ = 5006428268160.

The previous prime is 10111221212051. The next prime is 10111221212117. The reversal of 10111221212102 is 20121212211101.

It is a super-2 number, since 2×10111221212102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10601108 + ... + 11515464.

It is an arithmetic number, because the mean of its divisors is an integer number (957149040042).

Almost surely, 2^{10111221212102} is an apocalyptic number.

10111221212102 is a deficient number, since it is larger than the sum of its proper divisors (5203163428570).

10111221212102 is a wasteful number, since it uses less digits than its factorization.

10111221212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968143.

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

Adding to 10111221212102 its reverse (20121212211101), we get a palindrome (30232433423203).

The spelling of 10111221212102 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twelve thousand, one hundred two".