101211212011120 has 20 divisors (see below), whose sum is σ = 235316067926040. Its totient is φ = 40484484804416.

The previous prime is 101211212011103. The next prime is 101211212011121. The reversal of 101211212011120 is 21110212112101.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 101211212011094 and 101211212011103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211212011121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632570074990 + ... + 632570075149.

It is an arithmetic number, because the mean of its divisors is an integer number (11765803396302).

Almost surely, 2^{101211212011120} is an apocalyptic number.

101211212011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211212011120 is an abundant number, since it is smaller than the sum of its proper divisors (134104855914920).

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

101211212011120 is a wasteful number, since it uses less digits than its factorization.

101211212011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265140150152 (or 1265140150146 counting only the distinct ones).

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

Adding to 101211212011120 its reverse (21110212112101), we get a palindrome (122321424123221).

The spelling of 101211212011120 in words is "one hundred one trillion, two hundred eleven billion, two hundred twelve million, eleven thousand, one hundred twenty".