101220201010 has 16 divisors (see below), whose sum is σ = 182456283672. Its totient is φ = 40430320000.

The previous prime is 101220200999. The next prime is 101220201037. The reversal of 101220201010 is 10102022101.

It can be written as a sum of positive squares in 4 ways, for example, as 101115732169 + 104468841 = 317987^2 + 10221^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7212691 + ... + 7226710.

Almost surely, 2^101220201010 is an apocalyptic number.

101220201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220201010 is a deficient number, since it is larger than the sum of its proper divisors (81236082662).

101220201010 is a wasteful number, since it uses less digits than its factorization.

101220201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440109.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101220201010 its reverse (10102022101), we get a palindrome (111322223111).

The spelling of 101220201010 in words is "one hundred one billion, two hundred twenty million, two hundred one thousand, ten".