101221122211210 has 64 divisors (see below), whose sum is σ = 189098257259520. Its totient is φ = 38981552762880.

The previous prime is 101221122211163. The next prime is 101221122211241. The reversal of 101221122211210 is 12112221122101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64555947 + ... + 66105313.

It is an arithmetic number, because the mean of its divisors is an integer number (2954660269680).

Almost surely, 2^{101221122211210} is an apocalyptic number.

101221122211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221122211210 is a deficient number, since it is larger than the sum of its proper divisors (87877135048310).

101221122211210 is a wasteful number, since it uses less digits than its factorization.

101221122211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551511.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 101221122211210 its reverse (12112221122101), we get a palindrome (113333343333311).

The spelling of 101221122211210 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, two hundred ten".