202122121222 has 64 divisors (see below), whose sum is σ = 376412728320. Its totient is φ = 79490226816.

The previous prime is 202122121219. The next prime is 202122121301. The reversal of 202122121222 is 222121221202.

It is a self number, because there is not a number n which added to its sum of digits gives 202122121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1397133 + ... + 1534999.

It is an arithmetic number, because the mean of its divisors is an integer number (5881448880).

Almost surely, 2^202122121222 is an apocalyptic number.

202122121222 is a deficient number, since it is larger than the sum of its proper divisors (174290607098).

202122121222 is a wasteful number, since it uses less digits than its factorization.

202122121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138085.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202122121222 its reverse (222121221202), we get a palindrome (424243342424).

The spelling of 202122121222 in words is "two hundred two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".