21100101021010 has 32 divisors (see below), whose sum is σ = 41555872081152. Its totient is φ = 7649996148480.

The previous prime is 21100101020993. The next prime is 21100101021067. The reversal of 21100101021010 is 1012010100112.

It is a super-2 number, since 2×21100101021010² (a number of 27 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 284561002 + ... + 284635141.

It is an arithmetic number, because the mean of its divisors is an integer number (1298621002536).

Almost surely, 2^{21100101021010} is an apocalyptic number.

21100101021010 is a deficient number, since it is larger than the sum of its proper divisors (20455771060142).

21100101021010 is a wasteful number, since it uses less digits than its factorization.

21100101021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569196498.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21100101021010 its reverse (1012010100112), we get a palindrome (22112111121122).

The spelling of 21100101021010 in words is "twenty-one trillion, one hundred billion, one hundred one million, twenty-one thousand, ten".