122020221111 has 8 divisors (see below), whose sum is σ = 162699598464. Its totient is φ = 81343828920.

The previous prime is 122020221109. The next prime is 122020221121. The reversal of 122020221111 is 111122020221.

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

It is not a de Polignac number, because 122020221111 - 2¹ = 122020221109 is a prime.

It is a super-4 number, since 4×122020221111⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020221121) 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, 649105 + ... + 815706.

It is an arithmetic number, because the mean of its divisors is an integer number (20337449808).

Almost surely, 2^122020221111 is an apocalyptic number.

122020221111 is a deficient number, since it is larger than the sum of its proper divisors (40679377353).

122020221111 is a wasteful number, since it uses less digits than its factorization.

122020221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492581.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122020221111 its reverse (111122020221), we get a palindrome (233142241332).

It can be divided in two parts, 122020221 and 111, that multiplied together give a palindrome (13544244531).

The spelling of 122020221111 in words is "one hundred twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred eleven".