10101220118 has 12 divisors (see below), whose sum is σ = 16654491420. Its totient is φ = 4591463580.

The previous prime is 10101220117. The next prime is 10101220121. The reversal of 10101220118 is 81102210101.

It is a junction number, because it is equal to n+sod(n) for n = 10101220096 and 10101220105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101220111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20870048 + ... + 20870531.

It is an arithmetic number, because the mean of its divisors is an integer number (1387874285).

Almost surely, 2^10101220118 is an apocalyptic number.

10101220118 is a deficient number, since it is larger than the sum of its proper divisors (6553271302).

10101220118 is a wasteful number, since it uses less digits than its factorization.

10101220118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41740603 (or 41740592 counting only the distinct ones).

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

Adding to 10101220118 its reverse (81102210101), we get a palindrome (91203430219).

The spelling of 10101220118 in words is "ten billion, one hundred one million, two hundred twenty thousand, one hundred eighteen".