122200110021 has 16 divisors (see below), whose sum is σ = 179406793728. Its totient is φ = 73368514800.

The previous prime is 122200110017. The next prime is 122200110037. The reversal of 122200110021 is 120011002221.

It is not a de Polignac number, because 122200110021 - 2² = 122200110017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122200109979 and 122200110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200110001) 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, 17300365 + ... + 17307426.

It is an arithmetic number, because the mean of its divisors is an integer number (11212924608).

Almost surely, 2^122200110021 is an apocalyptic number.

122200110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122200110021 is a deficient number, since it is larger than the sum of its proper divisors (57206683707).

122200110021 is a wasteful number, since it uses less digits than its factorization.

122200110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34607912.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122200110021 its reverse (120011002221), we get a palindrome (242211112242).

It can be divided in two parts, 122200 and 110021, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 122200110021 in words is "one hundred twenty-two billion, two hundred million, one hundred ten thousand, twenty-one".