101201221201220 has 96 divisors (see below), whose sum is σ = 251362387261440. Its totient is φ = 33491965317120.

The previous prime is 101201221201207. The next prime is 101201221201247. The reversal of 101201221201220 is 22102122102101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28283789 + ... + 31660308.

It is an arithmetic number, because the mean of its divisors is an integer number (2618358200640).

Almost surely, 2^{101201221201220} is an apocalyptic number.

101201221201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101201221201220 is an abundant number, since it is smaller than the sum of its proper divisors (150161166060220).

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

101201221201220 is a wasteful number, since it uses less digits than its factorization.

101201221201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59944533 (or 59944531 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101201221201220 its reverse (22102122102101), we get a palindrome (123303343303321).

The spelling of 101201221201220 in words is "one hundred one trillion, two hundred one billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty".