101220012021012 has 24 divisors (see below), whose sum is σ = 236190533505696. Its totient is φ = 33738503227488.

The previous prime is 101220012020983. The next prime is 101220012021091. The reversal of 101220012021012 is 210120210022101.

It is a junction number, because it is equal to n+sod(n) for n = 101220012020982 and 101220012021000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187316403 + ... + 187855994.

It is an arithmetic number, because the mean of its divisors is an integer number (9841272229404).

Almost surely, 2^{101220012021012} is an apocalyptic number.

101220012021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101220012021012 is an abundant number, since it is smaller than the sum of its proper divisors (134970521484684).

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

101220012021012 is a wasteful number, since it uses less digits than its factorization.

101220012021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375194887 (or 375194885 counting only the distinct ones).

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

Adding to 101220012021012 its reverse (210120210022101), we get a palindrome (311340222043113).

The spelling of 101220012021012 in words is "one hundred one trillion, two hundred twenty billion, twelve million, twenty-one thousand, twelve".