1220000122 has 16 divisors (see below), whose sum is σ = 2029093344. Its totient is φ = 545454000.

The previous prime is 1220000113. The next prime is 1220000129. The reversal of 1220000122 is 2210000221.

It is a junction number, because it is equal to n+sod(n) for n = 1220000099 and 1220000108.

It is not an unprimeable number, because it can be changed into a prime (1220000129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453204 + ... + 455887.

It is an arithmetic number, because the mean of its divisors is an integer number (126818334).

Almost surely, 2^1220000122 is an apocalyptic number.

1220000122 is a deficient number, since it is larger than the sum of its proper divisors (809093222).

1220000122 is a wasteful number, since it uses less digits than its factorization.

1220000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909165.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1220000122 is about 34928.5001395708. The cubic root of 1220000122 is about 1068.5297657665.

Adding to 1220000122 its reverse (2210000221), we get a palindrome (3430000343).

Subtracting 1220000122 from its reverse (2210000221), we obtain a palindrome (990000099).

It can be divided in two parts, 1220000 and 122, that multiplied together give a square (148840000 = 12200²).

The spelling of 1220000122 in words is "one billion, two hundred twenty million, one hundred twenty-two", and thus it is an aban number.