201102120111020 has 24 divisors (see below), whose sum is σ = 422315867649984. Its totient is φ = 80440578441216.

The previous prime is 201102120111017. The next prime is 201102120111029. The reversal of 201102120111020 is 20111021201102.

It is a super-2 number, since 2×201102120111020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201102120110986 and 201102120111004.

It is not an unprimeable number, because it can be changed into a prime (201102120111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10678532 + ... + 22720811.

It is an arithmetic number, because the mean of its divisors is an integer number (17596494485416).

Almost surely, 2^{201102120111020} is an apocalyptic number.

201102120111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201102120111020 is an abundant number, since it is smaller than the sum of its proper divisors (221213747538964).

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

201102120111020 is a wasteful number, since it uses less digits than its factorization.

201102120111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33700409 (or 33700407 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201102120111020 its reverse (20111021201102), we get a palindrome (221213141312122).

The spelling of 201102120111020 in words is "two hundred one trillion, one hundred two billion, one hundred twenty million, one hundred eleven thousand, twenty".