122221012001111 has 16 divisors (see below), whose sum is σ = 131242259873088. Its totient is φ = 113403519398400.

The previous prime is 122221012001093. The next prime is 122221012001113. The reversal of 122221012001111 is 111100210122221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122221012001111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122221012001111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221012001113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13953281 + ... + 20955573.

It is an arithmetic number, because the mean of its divisors is an integer number (8202641242068).

Almost surely, 2^{122221012001111} is an apocalyptic number.

122221012001111 is a deficient number, since it is larger than the sum of its proper divisors (9021247871977).

122221012001111 is a wasteful number, since it uses less digits than its factorization.

122221012001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016842.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122221012001111 its reverse (111100210122221), we get a palindrome (233321222123332).

The spelling of 122221012001111 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, twelve million, one thousand, one hundred eleven".