222012020145 has 16 divisors (see below), whose sum is σ = 355350229632. Its totient is φ = 118362744960.

The previous prime is 222012020123. The next prime is 222012020203. The reversal of 222012020145 is 541020210222.

It is not a de Polignac number, because 222012020145 - 2¹⁵ = 222011987377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2687061 + ... + 2768450.

It is an arithmetic number, because the mean of its divisors is an integer number (22209389352).

Almost surely, 2^222012020145 is an apocalyptic number.

It is an amenable number.

222012020145 is a deficient number, since it is larger than the sum of its proper divisors (133338209487).

222012020145 is a wasteful number, since it uses less digits than its factorization.

222012020145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458232.

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

Adding to 222012020145 its reverse (541020210222), we get a palindrome (763032230367).

The spelling of 222012020145 in words is "two hundred twenty-two billion, twelve million, twenty thousand, one hundred forty-five".