2195700220 has 24 divisors (see below), whose sum is σ = 5269680864. Its totient is φ = 752811456.

The previous prime is 2195700217. The next prime is 2195700223. The reversal of 2195700220 is 220075912.

It is an interprime number because it is at equal distance from previous prime (2195700217) and next prime (2195700223).

It is a super-2 number, since 2×2195700220² = 9642198912216096800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195700223) 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, 7841647 + ... + 7841926.

It is an arithmetic number, because the mean of its divisors is an integer number (219570036).

Almost surely, 2^2195700220 is an apocalyptic number.

2195700220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195700220 is an abundant number, since it is smaller than the sum of its proper divisors (3073980644).

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

2195700220 is a wasteful number, since it uses less digits than its factorization.

2195700220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15683589 (or 15683587 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2195700220 is about 46858.2993716161. The cubic root of 2195700220 is about 1299.7435825626.

The spelling of 2195700220 in words is "two billion, one hundred ninety-five million, seven hundred thousand, two hundred twenty".