10101221022100 has 144 divisors (see below), whose sum is σ = 24681514032000. Its totient is φ = 3560366937600.

The previous prime is 10101221022083. The next prime is 10101221022121. The reversal of 10101221022100 is 122012210101.

It is a super-2 number, since 2×10101221022100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14581590 + ... + 15258610.

It is an arithmetic number, because the mean of its divisors is an integer number (171399403000).

Almost surely, 2^{10101221022100} is an apocalyptic number.

10101221022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10101221022100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12340757016000).

10101221022100 is an abundant number, since it is smaller than the sum of its proper divisors (14580293009900).

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

10101221022100 is a wasteful number, since it uses less digits than its factorization.

10101221022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677570 (or 677563 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10101221022100 its reverse (122012210101), we get a palindrome (10223233232201).

The spelling of 10101221022100 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, twenty-two thousand, one hundred".