2201561061 has 8 divisors (see below), whose sum is σ = 3354759744. Its totient is φ = 1258034880.

The previous prime is 2201561057. The next prime is 2201561099. The reversal of 2201561061 is 1601651022.

2201561061 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2201561061 - 2² = 2201561057 is a prime.

It is a super-2 number, since 2×2201561061² = 9693742210622891442, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201561561) 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, 52418100 + ... + 52418141.

It is an arithmetic number, because the mean of its divisors is an integer number (419344968).

Almost surely, 2^2201561061 is an apocalyptic number.

2201561061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2201561061 is a deficient number, since it is larger than the sum of its proper divisors (1153198683).

2201561061 is a wasteful number, since it uses less digits than its factorization.

2201561061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104836251.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 2201561061 is about 46920.7956134591. The cubic root of 2201561061 is about 1300.8989957238.

The spelling of 2201561061 in words is "two billion, two hundred one million, five hundred sixty-one thousand, sixty-one".