122021110020111 has 16 divisors (see below), whose sum is σ = 171262419930240. Its totient is φ = 77063839477920.

The previous prime is 122021110020109. The next prime is 122021110020143. The reversal of 122021110020111 is 111020011120221.

It is a happy number.

It is not a de Polignac number, because 122021110020111 - 2¹ = 122021110020109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021110020101) 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, 27423505 + ... + 31560906.

It is an arithmetic number, because the mean of its divisors is an integer number (10703901245640).

Almost surely, 2^{122021110020111} is an apocalyptic number.

122021110020111 is a deficient number, since it is larger than the sum of its proper divisors (49241309910129).

122021110020111 is a wasteful number, since it uses less digits than its factorization.

122021110020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59020726.

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

Adding to 122021110020111 its reverse (111020011120221), we get a palindrome (233041121140332).

The spelling of 122021110020111 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred ten million, twenty thousand, one hundred eleven".