10101111221012 has 48 divisors (see below), whose sum is σ = 20856260124672. Its totient is φ = 4188928249440.

The previous prime is 10101111221011. The next prime is 10101111221021. The reversal of 10101111221012 is 21012211110101.

10101111221012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101111221011) 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, 7093073 + ... + 8397255.

It is an arithmetic number, because the mean of its divisors is an integer number (434505419264).

Almost surely, 2^{10101111221012} is an apocalyptic number.

It is an amenable number.

10101111221012 is an abundant number, since it is smaller than the sum of its proper divisors (10755148903660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10101111221012 is a wasteful number, since it uses less digits than its factorization.

10101111221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313148 (or 1313146 counting only the distinct ones).

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

Adding to 10101111221012 its reverse (21012211110101), we get a palindrome (31113322331113).

The spelling of 10101111221012 in words is "ten trillion, one hundred one billion, one hundred eleven million, two hundred twenty-one thousand, twelve".