101621221211 has 8 divisors (see below), whose sum is σ = 104180476848. Its totient is φ = 99065808000.

The previous prime is 101621221201. The next prime is 101621221253. The reversal of 101621221211 is 112122126101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101621221211 - 2¹⁸ = 101620959067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101621221201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907010 + ... + 1012871.

It is an arithmetic number, because the mean of its divisors is an integer number (13022559606).

Almost surely, 2^101621221211 is an apocalyptic number.

101621221211 is a deficient number, since it is larger than the sum of its proper divisors (2559255637).

101621221211 is a wasteful number, since it uses less digits than its factorization.

101621221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921213.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 101621221211 its reverse (112122126101), we get a palindrome (213743347312).

The spelling of 101621221211 in words is "one hundred one billion, six hundred twenty-one million, two hundred twenty-one thousand, two hundred eleven".