101111121110220 has 48 divisors (see below), whose sum is σ = 304888919042400. Its totient is φ = 24888891350016.

The previous prime is 101111121110141. The next prime is 101111121110299. The reversal of 101111121110220 is 22011121111101.

It is an interprime number because it is at equal distance from previous prime (101111121110141) and next prime (101111121110299).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101111121110220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64814820445 + ... + 64814822004.

It is an arithmetic number, because the mean of its divisors is an integer number (6351852480050).

Almost surely, 2^{101111121110220} is an apocalyptic number.

101111121110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111121110220 is an abundant number, since it is smaller than the sum of its proper divisors (203777797932180).

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

101111121110220 is a wasteful number, since it uses less digits than its factorization.

101111121110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129629642474 (or 129629642472 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101111121110220 its reverse (22011121111101), we get a palindrome (123122242221321).

The spelling of 101111121110220 in words is "one hundred one trillion, one hundred eleven billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty".