202102212022 has 4 divisors (see below), whose sum is σ = 303153318036. Its totient is φ = 101051106010.

The previous prime is 202102212017. The next prime is 202102212029. The reversal of 202102212022 is 220212201202.

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 = 202102211987 and 202102212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102212029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50525553004 + ... + 50525553007.

It is an arithmetic number, because the mean of its divisors is an integer number (75788329509).

Almost surely, 2^202102212022 is an apocalyptic number.

202102212022 is a deficient number, since it is larger than the sum of its proper divisors (101051106014).

202102212022 is a wasteful number, since it uses less digits than its factorization.

202102212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101051106013.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202102212022 its reverse (220212201202), we get a palindrome (422314413224).

The spelling of 202102212022 in words is "two hundred two billion, one hundred two million, two hundred twelve thousand, twenty-two".