2012222541 has 32 divisors (see below), whose sum is σ = 3160588288. Its totient is φ = 1114689600.

The previous prime is 2012222503. The next prime is 2012222549. The reversal of 2012222541 is 1452222102.

It is not a de Polignac number, because 2012222541 - 2¹³ = 2012214349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 (2012222549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215316 + ... + 224466.

It is an arithmetic number, because the mean of its divisors is an integer number (98768384).

Almost surely, 2^2012222541 is an apocalyptic number.

2012222541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2012222541 is a deficient number, since it is larger than the sum of its proper divisors (1148365747).

2012222541 is a wasteful number, since it uses less digits than its factorization.

2012222541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2012222541 is about 44857.8035686100. The cubic root of 2012222541 is about 1262.4824120152.

Adding to 2012222541 its reverse (1452222102), we get a palindrome (3464444643).

The spelling of 2012222541 in words is "two billion, twelve million, two hundred twenty-two thousand, five hundred forty-one".