101210121110220 has 24 divisors (see below), whose sum is σ = 283388339108784. Its totient is φ = 26989365629376.

The previous prime is 101210121110159. The next prime is 101210121110221. The reversal of 101210121110220 is 22011121012101.

It is a happy number.

It is a super-3 number, since 3×101210121110220³ (a number of 43 digits) contains 333 as substring.

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 101210121110220.

It is not an unprimeable number, because it can be changed into a prime (101210121110221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843417675859 + ... + 843417675978.

It is an arithmetic number, because the mean of its divisors is an integer number (11807847462866).

Almost surely, 2^{101210121110220} is an apocalyptic number.

101210121110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101210121110220 is an abundant number, since it is smaller than the sum of its proper divisors (182178217998564).

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

101210121110220 is a wasteful number, since it uses less digits than its factorization.

101210121110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686835351849 (or 1686835351847 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101210121110220 its reverse (22011121012101), we get a palindrome (123221242122321).

The spelling of 101210121110220 in words is "one hundred one trillion, two hundred ten billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty".