211222102201990 has 32 divisors (see below), whose sum is σ = 414765072184320. Its totient is φ = 76807727628000.

The previous prime is 211222102201973. The next prime is 211222102201991. The reversal of 211222102201990 is 99102201222112.

It is a happy number.

211222102201990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211222102201990² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222102201991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24490731 + ... + 31972489.

It is an arithmetic number, because the mean of its divisors is an integer number (12961408505760).

Almost surely, 2^{211222102201990} is an apocalyptic number.

211222102201990 is a deficient number, since it is larger than the sum of its proper divisors (203542969982330).

211222102201990 is a wasteful number, since it uses less digits than its factorization.

211222102201990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738428.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 211222102201990 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred two million, two hundred one thousand, nine hundred ninety".