122101010220111 has 32 divisors (see below), whose sum is σ = 175590517851840. Its totient is φ = 75025094344704.

The previous prime is 122101010220109. The next prime is 122101010220131. The reversal of 122101010220111 is 111022010101221.

It is a happy number.

It is not a de Polignac number, because 122101010220111 - 2¹ = 122101010220109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101010220131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1253954235 + ... + 1254051603.

It is an arithmetic number, because the mean of its divisors is an integer number (5487203682870).

Almost surely, 2^{122101010220111} is an apocalyptic number.

122101010220111 is a deficient number, since it is larger than the sum of its proper divisors (53489507631729).

122101010220111 is a wasteful number, since it uses less digits than its factorization.

122101010220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145835.

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

Adding to 122101010220111 its reverse (111022010101221), we get a palindrome (233123020321332).

The spelling of 122101010220111 in words is "one hundred twenty-two trillion, one hundred one billion, ten million, two hundred twenty thousand, one hundred eleven".