10101101021220 has 96 divisors (see below), whose sum is σ = 31360080076416. Its totient is φ = 2408608281600.

The previous prime is 10101101021177. The next prime is 10101101021227. The reversal of 10101101021220 is 2212010110101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10101101021196 and 10101101021205.

It is not an unprimeable number, because it can be changed into a prime (10101101021227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125408089 + ... + 125488608.

It is an arithmetic number, because the mean of its divisors is an integer number (326667500796).

Almost surely, 2^{10101101021220} is an apocalyptic number.

10101101021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101101021220 is an abundant number, since it is smaller than the sum of its proper divisors (21258979055196).

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

10101101021220 is a wasteful number, since it uses less digits than its factorization.

10101101021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250896781 (or 250896779 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10101101021220 its reverse (2212010110101), we get a palindrome (12313111131321).

The spelling of 10101101021220 in words is "ten trillion, one hundred one billion, one hundred one million, twenty-one thousand, two hundred twenty".