101200121221020 has 48 divisors (see below), whose sum is σ = 283884110932128. Its totient is φ = 26936815991040.

The previous prime is 101200121220977. The next prime is 101200121221061. The reversal of 101200121221020 is 20122121002101.

101200121221020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 1558811059 + ... + 1558875978.

It is an arithmetic number, because the mean of its divisors is an integer number (5914252311086).

Almost surely, 2^{101200121221020} is an apocalyptic number.

101200121221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200121221020 is an abundant number, since it is smaller than the sum of its proper divisors (182683989711108).

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

101200121221020 is a wasteful number, since it uses less digits than its factorization.

101200121221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117687590 (or 3117687588 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101200121221020 its reverse (20122121002101), we get a palindrome (121322242223121).

The spelling of 101200121221020 in words is "one hundred one trillion, two hundred billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty".