101021212210 has 16 divisors (see below), whose sum is σ = 182780352216. Its totient is φ = 40199113728.

The previous prime is 101021212183. The next prime is 101021212249. The reversal of 101021212210 is 12212120101.

It can be written as a sum of positive squares in 4 ways, for example, as 37112866609 + 63908345601 = 192647^2 + 252801^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26169369 + ... + 26173228.

Almost surely, 2^101021212210 is an apocalyptic number.

101021212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101021212210 is a deficient number, since it is larger than the sum of its proper divisors (81759140006).

101021212210 is a wasteful number, since it uses less digits than its factorization.

101021212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52342797.

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

Adding to 101021212210 its reverse (12212120101), we get a palindrome (113233332311).

The spelling of 101021212210 in words is "one hundred one billion, twenty-one million, two hundred twelve thousand, two hundred ten".