1220033125061 has 4 divisors (see below), whose sum is σ = 1220070839532. Its totient is φ = 1219995410592.

The previous prime is 1220033125007. The next prime is 1220033125081. The reversal of 1220033125061 is 1605213300221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 311928952036 + 908104173025 = 558506^2 + 952945^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220033125061 - 2⁶ = 1220033124997 is a prime.

It is a super-2 number, since 2×1220033125061² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220033125061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220033125001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18808670 + ... + 18873423.

It is an arithmetic number, because the mean of its divisors is an integer number (305017709883).

Almost surely, 2^{1220033125061} is an apocalyptic number.

It is an amenable number.

1220033125061 is a deficient number, since it is larger than the sum of its proper divisors (37714471).

1220033125061 is an equidigital number, since it uses as much as digits as its factorization.

1220033125061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37714470.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1220033125061 its reverse (1605213300221), we get a palindrome (2825246425282).

The spelling of 1220033125061 in words is "one trillion, two hundred twenty billion, thirty-three million, one hundred twenty-five thousand, sixty-one".