101021001220220 has 24 divisors (see below), whose sum is σ = 213567888492000. Its totient is φ = 40137203168192.

The previous prime is 101021001220199. The next prime is 101021001220229. The reversal of 101021001220220 is 22022100120101.

It is a junction number, because it is equal to n+sod(n) for n = 101021001220195 and 101021001220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021001220229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16949829440 + ... + 16949835399.

It is an arithmetic number, because the mean of its divisors is an integer number (8898662020500).

Almost surely, 2^{101021001220220} is an apocalyptic number.

101021001220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101021001220220 is an abundant number, since it is smaller than the sum of its proper divisors (112546887271780).

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

101021001220220 is a wasteful number, since it uses less digits than its factorization.

101021001220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33899664997 (or 33899664995 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101021001220220 its reverse (22022100120101), we get a palindrome (123043101340321).

The spelling of 101021001220220 in words is "one hundred one trillion, twenty-one billion, one million, two hundred twenty thousand, two hundred twenty".