2210222061 has 6 divisors (see below), whose sum is σ = 3192542990. Its totient is φ = 1473481368.

The previous prime is 2210222051. The next prime is 2210222081. The reversal of 2210222061 is 1602220122.

It can be written as a sum of positive squares in only one way, i.e., 2209940100 + 281961 = 47010^2 + 531^2 .

It is not a de Polignac number, because 2210222061 - 2⁵ = 2210222029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210222041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122790106 + ... + 122790123.

Almost surely, 2^2210222061 is an apocalyptic number.

It is an amenable number.

2210222061 is a deficient number, since it is larger than the sum of its proper divisors (982320929).

2210222061 is a wasteful number, since it uses less digits than its factorization.

2210222061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245580235 (or 245580232 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2210222061 is about 47012.9988513815. The cubic root of 2210222061 is about 1302.6026873455.

Adding to 2210222061 its reverse (1602220122), we get a palindrome (3812442183).

The spelling of 2210222061 in words is "two billion, two hundred ten million, two hundred twenty-two thousand, sixty-one".