201122220222212 has 6 divisors (see below), whose sum is σ = 351963885388878. Its totient is φ = 100561110111104.

The previous prime is 201122220222107. The next prime is 201122220222221. The reversal of 201122220222212 is 212222022221102.

It can be written as a sum of positive squares in only one way, i.e., 153493119106756 + 47629101115456 = 12389234^2 + 6901384^2 .

It is a super-4 number, since 4×201122220222212⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25140277527773 + ... + 25140277527780.

It is an arithmetic number, because the mean of its divisors is an integer number (58660647564813).

Almost surely, 2^{201122220222212} is an apocalyptic number.

It is an amenable number.

201122220222212 is a deficient number, since it is larger than the sum of its proper divisors (150841665166666).

201122220222212 is a wasteful number, since it uses less digits than its factorization.

201122220222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50280555055557 (or 50280555055555 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 201122220222212 its reverse (212222022221102), we get a palindrome (413344242443314).

The spelling of 201122220222212 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twelve".