101221202122211 has 16 divisors (see below), whose sum is σ = 102430635290784. Its totient is φ = 100018774443264.

The previous prime is 101221202122199. The next prime is 101221202122273. The reversal of 101221202122211 is 112221202122101.

It is a cyclic number.

It is not a de Polignac number, because 101221202122211 - 2¹⁴ = 101221202105827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221202122111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149341361 + ... + 150017613.

It is an arithmetic number, because the mean of its divisors is an integer number (6401914705674).

Almost surely, 2^{101221202122211} is an apocalyptic number.

101221202122211 is a deficient number, since it is larger than the sum of its proper divisors (1209433168573).

101221202122211 is a wasteful number, since it uses less digits than its factorization.

101221202122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681430.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 101221202122211 its reverse (112221202122101), we get a palindrome (213442404244312).

The spelling of 101221202122211 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, two hundred eleven".