122111022002220 has 36 divisors (see below), whose sum is σ = 370403433407280. Its totient is φ = 32562939200544.

The previous prime is 122111022002173. The next prime is 122111022002227. The reversal of 122111022002220 is 22200220111221.

It is a happy number.

122111022002220 is a `hidden beast` number, since 1 + 2 + 211 + 10 + 220 + 0 + 2 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×122111022002220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122111022002193 and 122111022002202.

It is not an unprimeable number, because it can be changed into a prime (122111022002227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339197283160 + ... + 339197283519.

Almost surely, 2^{122111022002220} is an apocalyptic number.

122111022002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111022002220 is an abundant number, since it is smaller than the sum of its proper divisors (248292411405060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122111022002220 is a wasteful number, since it uses less digits than its factorization.

122111022002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678394566694 (or 678394566689 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122111022002220 its reverse (22200220111221), we get a palindrome (144311242113441).

The spelling of 122111022002220 in words is "one hundred twenty-two trillion, one hundred eleven billion, twenty-two million, two thousand, two hundred twenty".