122101000020111 has 16 divisors (see below), whose sum is σ = 187865061522944. Its totient is φ = 69094601951904.

The previous prime is 122101000020067. The next prime is 122101000020119. The reversal of 122101000020111 is 111020000101221.

It is not a de Polignac number, because 122101000020111 - 2³³ = 122092410085519 is a prime.

It is a super-2 number, since 2×122101000020111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101000020119) 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, 28224916936 + ... + 28224921261.

It is an arithmetic number, because the mean of its divisors is an integer number (11741566345184).

Almost surely, 2^{122101000020111} is an apocalyptic number.

122101000020111 is a deficient number, since it is larger than the sum of its proper divisors (65764061502833).

122101000020111 is a wasteful number, since it uses less digits than its factorization.

122101000020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56449838310.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122101000020111 its reverse (111020000101221), we get a palindrome (233121000121332).

The spelling of 122101000020111 in words is "one hundred twenty-two trillion, one hundred one billion, twenty thousand, one hundred eleven".