101220202011111 has 8 divisors (see below), whose sum is σ = 134960470057584. Its totient is φ = 67480034319360.

The previous prime is 101220202010981. The next prime is 101220202011179. The reversal of 101220202011111 is 111110202022101.

It is a happy number.

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

It is not a de Polignac number, because 101220202011111 - 2²⁶ = 101220134902247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220202011811) 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, 22702810 + ... + 26792871.

It is an arithmetic number, because the mean of its divisors is an integer number (16870058757198).

Almost surely, 2^{101220202011111} is an apocalyptic number.

101220202011111 is a deficient number, since it is larger than the sum of its proper divisors (33740268046473).

101220202011111 is an equidigital number, since it uses as much as digits as its factorization.

101220202011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50177361.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101220202011111 its reverse (111110202022101), we get a palindrome (212330404033212).

The spelling of 101220202011111 in words is "one hundred one trillion, two hundred twenty billion, two hundred two million, eleven thousand, one hundred eleven".