212211201022 has 4 divisors (see below), whose sum is σ = 318316801536. Its totient is φ = 106105600510.

The previous prime is 212211201017. The next prime is 212211201023. The reversal of 212211201022 is 220102112212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 212211200987 and 212211201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53052800254 + ... + 53052800257.

It is an arithmetic number, because the mean of its divisors is an integer number (79579200384).

Almost surely, 2^212211201022 is an apocalyptic number.

212211201022 is a deficient number, since it is larger than the sum of its proper divisors (106105600514).

212211201022 is a wasteful number, since it uses less digits than its factorization.

212211201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106105600513.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212211201022 its reverse (220102112212), we get a palindrome (432313313234).

The spelling of 212211201022 in words is "two hundred twelve billion, two hundred eleven million, two hundred one thousand, twenty-two".