202101121222 has 48 divisors (see below), whose sum is σ = 414297232272. Its totient is φ = 72683714880.

The previous prime is 202101121219. The next prime is 202101121231. The reversal of 202101121222 is 222121101202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202101121196 and 202101121205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7196673 + ... + 7224700.

It is an arithmetic number, because the mean of its divisors is an integer number (8631192339).

Almost surely, 2^202101121222 is an apocalyptic number.

202101121222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202101121222 is an abundant number, since it is smaller than the sum of its proper divisors (212196111050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202101121222 is a wasteful number, since it uses less digits than its factorization.

202101121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421413 (or 14421406 counting only the distinct ones).

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

Adding to 202101121222 its reverse (222121101202), we get a palindrome (424222222424).

It can be divided in two parts, 202101 and 121222, that added together give a palindrome (323323).

The spelling of 202101121222 in words is "two hundred two billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty-two".