2312201212222 has 16 divisors (see below), whose sum is σ = 3818313932400. Its totient is φ = 1041358343040.

The previous prime is 2312201212213. The next prime is 2312201212241. The reversal of 2312201212222 is 2222121022132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2312201212193 and 2312201212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482107947 + ... + 482112742.

It is an arithmetic number, because the mean of its divisors is an integer number (238644620775).

Almost surely, 2^{2312201212222} is an apocalyptic number.

2312201212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2312201212222 is a deficient number, since it is larger than the sum of its proper divisors (1506112720178).

2312201212222 is a wasteful number, since it uses less digits than its factorization.

2312201212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964220811.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2312201212222 its reverse (2222121022132), we get a palindrome (4534322234354).

The spelling of 2312201212222 in words is "two trillion, three hundred twelve billion, two hundred one million, two hundred twelve thousand, two hundred twenty-two".