101201121021220 has 48 divisors (see below), whose sum is σ = 233137778126400. Its totient is φ = 36594818760320.

The previous prime is 101201121021097. The next prime is 101201121021227. The reversal of 101201121021220 is 22120121102101.

It is a junction number, because it is equal to n+sod(n) for n = 101201121021194 and 101201121021203.

It is not an unprimeable number, because it can be changed into a prime (101201121021227) 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, 1284891055 + ... + 1284969814.

It is an arithmetic number, because the mean of its divisors is an integer number (4857037044300).

Almost surely, 2^{101201121021220} is an apocalyptic number.

101201121021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101201121021220 is an abundant number, since it is smaller than the sum of its proper divisors (131936657105180).

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

101201121021220 is a wasteful number, since it uses less digits than its factorization.

101201121021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569861068 (or 2569861066 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101201121021220 its reverse (22120121102101), we get a palindrome (123321242123321).

The spelling of 101201121021220 in words is "one hundred one trillion, two hundred one billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty".