101220202111 has 8 divisors (see below), whose sum is σ = 115683444864. Its totient is φ = 86757762840.

The previous prime is 101220202093. The next prime is 101220202117. The reversal of 101220202111 is 111202022101.

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

It is not a de Polignac number, because 101220202111 - 2⁷ = 101220201983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101220202091 and 101220202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220202117) 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, 98916 + ... + 460678.

It is an arithmetic number, because the mean of its divisors is an integer number (14460430608).

Almost surely, 2^101220202111 is an apocalyptic number.

101220202111 is a deficient number, since it is larger than the sum of its proper divisors (14463242753).

101220202111 is an equidigital number, since it uses as much as digits as its factorization.

101220202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401741.

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

Adding to 101220202111 its reverse (111202022101), we get a palindrome (212422224212).

The spelling of 101220202111 in words is "one hundred one billion, two hundred twenty million, two hundred two thousand, one hundred eleven".