101220121010 has 16 divisors (see below), whose sum is σ = 191785492800. Its totient is φ = 38357098416.

The previous prime is 101220120961. The next prime is 101220121019. The reversal of 101220121010 is 10121022101.

101220121010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101220120982 and 101220121000.

It is not an unprimeable number, because it can be changed into a prime (101220121019) 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, 266368550 + ... + 266368929.

It is an arithmetic number, because the mean of its divisors is an integer number (11986593300).

Almost surely, 2^101220121010 is an apocalyptic number.

101220121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220121010 is a deficient number, since it is larger than the sum of its proper divisors (90565371790).

101220121010 is a wasteful number, since it uses less digits than its factorization.

101220121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532737505.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101220121010 its reverse (10121022101), we get a palindrome (111341143111).

The spelling of 101220121010 in words is "one hundred one billion, two hundred twenty million, one hundred twenty-one thousand, ten".