101021121100220 has 24 divisors (see below), whose sum is σ = 212149904930208. Its totient is φ = 40407391179200.

The previous prime is 101021121100189. The next prime is 101021121100313. The reversal of 101021121100220 is 22001121120101.

It is a junction number, because it is equal to n+sod(n) for n = 101021121100195 and 101021121100204.

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, 65295071 + ... + 66824310.

It is an arithmetic number, because the mean of its divisors is an integer number (8839579372092).

Almost surely, 2^{101021121100220} is an apocalyptic number.

101021121100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101021121100220 is an abundant number, since it is smaller than the sum of its proper divisors (111128783829988).

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

101021121100220 is a wasteful number, since it uses less digits than its factorization.

101021121100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132157621 (or 132157619 counting only the distinct ones).

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

Adding to 101021121100220 its reverse (22001121120101), we get a palindrome (123022242220321).

The spelling of 101021121100220 in words is "one hundred one trillion, twenty-one billion, one hundred twenty-one million, one hundred thousand, two hundred twenty".