101421211220111 has 8 divisors (see below), whose sum is σ = 113039120864880. Its totient is φ = 90431296691328.

The previous prime is 101421211220101. The next prime is 101421211220113. The reversal of 101421211220111 is 111022112124101.

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 101421211220111 - 2¹⁸ = 101421210957967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421211220113) 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, 156998778656 + ... + 156998779301.

It is an arithmetic number, because the mean of its divisors is an integer number (14129890108110).

Almost surely, 2^{101421211220111} is an apocalyptic number.

101421211220111 is a deficient number, since it is larger than the sum of its proper divisors (11617909644769).

101421211220111 is a wasteful number, since it uses less digits than its factorization.

101421211220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313997557993.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 101421211220111 its reverse (111022112124101), we get a palindrome (212443323344212).

The spelling of 101421211220111 in words is "one hundred one trillion, four hundred twenty-one billion, two hundred eleven million, two hundred twenty thousand, one hundred eleven".