202211021212 has 12 divisors (see below), whose sum is σ = 358132773096. Its totient is φ = 99887371760.

The previous prime is 202211021189. The next prime is 202211021231. The reversal of 202211021212 is 212120112202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304534339 + ... + 304535002.

It is an arithmetic number, because the mean of its divisors is an integer number (29844397758).

Almost surely, 2^202211021212 is an apocalyptic number.

It is an amenable number.

202211021212 is a deficient number, since it is larger than the sum of its proper divisors (155921751884).

202211021212 is a wasteful number, since it uses less digits than its factorization.

202211021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609069428 (or 609069426 counting only the distinct ones).

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

Adding to 202211021212 its reverse (212120112202), we get a palindrome (414331133414).

The spelling of 202211021212 in words is "two hundred two billion, two hundred eleven million, twenty-one thousand, two hundred twelve".