101021211010 has 32 divisors (see below), whose sum is σ = 183684639600. Its totient is φ = 39998361600.

The previous prime is 101021211007. The next prime is 101021211079. The reversal of 101021211010 is 10112120101.

It can be written as a sum of positive squares in 8 ways, for example, as 78365843721 + 22655367289 = 279939^2 + 150517^2 .

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 15 ways as a sum of consecutive naturals, for example, 5008626 + ... + 5028754.

Almost surely, 2^101021211010 is an apocalyptic number.

101021211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101021211010 is a deficient number, since it is larger than the sum of its proper divisors (82663428590).

101021211010 is a wasteful number, since it uses less digits than its factorization.

101021211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25206.

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

Adding to 101021211010 its reverse (10112120101), we get a palindrome (111133331111).

Subtracting from 101021211010 its reverse (10112120101), we obtain a palindrome (90909090909).

The spelling of 101021211010 in words is "one hundred one billion, twenty-one million, two hundred eleven thousand, ten".