10221010220220 has 24 divisors (see below), whose sum is σ = 28618828616784. Its totient is φ = 2725602725376.

The previous prime is 10221010220191. The next prime is 10221010220227. The reversal of 10221010220220 is 2202201012201.

It is a super-3 number, since 3×10221010220220³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10221010220220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221010220227) 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, 85175085109 + ... + 85175085228.

It is an arithmetic number, because the mean of its divisors is an integer number (1192451192366).

Almost surely, 2^{10221010220220} is an apocalyptic number.

10221010220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221010220220 is an abundant number, since it is smaller than the sum of its proper divisors (18397818396564).

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

10221010220220 is a wasteful number, since it uses less digits than its factorization.

10221010220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170350170349 (or 170350170347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10221010220220 its reverse (2202201012201), we get a palindrome (12423211232421).

The spelling of 10221010220220 in words is "ten trillion, two hundred twenty-one billion, ten million, two hundred twenty thousand, two hundred twenty".