211122022020212 has 6 divisors (see below), whose sum is σ = 369463538535378. Its totient is φ = 105561011010104.

The previous prime is 211122022020211. The next prime is 211122022020223. The reversal of 211122022020212 is 212020220221112.

It can be written as a sum of positive squares in only one way, i.e., 210540274120036 + 581747900176 = 14510006^2 + 762724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122022020211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26390252752523 + ... + 26390252752530.

It is an arithmetic number, because the mean of its divisors is an integer number (61577256422563).

Almost surely, 2^{211122022020212} is an apocalyptic number.

It is an amenable number.

211122022020212 is a deficient number, since it is larger than the sum of its proper divisors (158341516515166).

211122022020212 is a wasteful number, since it uses less digits than its factorization.

211122022020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52780505505057 (or 52780505505055 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211122022020212 its reverse (212020220221112), we get a palindrome (423142242241324).

The spelling of 211122022020212 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty-two million, twenty thousand, two hundred twelve".