122021210223111 has 4 divisors (see below), whose sum is σ = 162694946964152. Its totient is φ = 81347473482072.

The previous prime is 122021210223079. The next prime is 122021210223113. The reversal of 122021210223111 is 111322012120221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122021210223111 - 2⁵ = 122021210223079 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 (122021210223113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20336868370516 + ... + 20336868370521.

It is an arithmetic number, because the mean of its divisors is an integer number (40673736741038).

Almost surely, 2^{122021210223111} is an apocalyptic number.

122021210223111 is a deficient number, since it is larger than the sum of its proper divisors (40673736741041).

122021210223111 is an equidigital number, since it uses as much as digits as its factorization.

122021210223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40673736741040.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 122021210223111 its reverse (111322012120221), we get a palindrome (233343222343332).

The spelling of 122021210223111 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred ten million, two hundred twenty-three thousand, one hundred eleven".