101220201111020 has 24 divisors (see below), whose sum is σ = 214667000776368. Its totient is φ = 40087208360000.

The previous prime is 101220201111019. The next prime is 101220201111041. The reversal of 101220201111020 is 20111102022101.

It is a super-2 number, since 2×101220201111020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101220201110986 and 101220201111004.

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, 25054503206 + ... + 25054507245.

It is an arithmetic number, because the mean of its divisors is an integer number (8944458365682).

Almost surely, 2^{101220201111020} is an apocalyptic number.

101220201111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220201111020 is an abundant number, since it is smaller than the sum of its proper divisors (113446799665348).

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

101220201111020 is a wasteful number, since it uses less digits than its factorization.

101220201111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50109010561 (or 50109010559 counting only the distinct ones).

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

Adding to 101220201111020 its reverse (20111102022101), we get a palindrome (121331303133121).

The spelling of 101220201111020 in words is "one hundred one trillion, two hundred twenty billion, two hundred one million, one hundred eleven thousand, twenty".