202101021212 has 24 divisors (see below), whose sum is σ = 354347418096. Its totient is φ = 100859017088.

The previous prime is 202101021203. The next prime is 202101021233. The reversal of 202101021212 is 212120101202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8040248 + ... + 8065344.

It is an arithmetic number, because the mean of its divisors is an integer number (14764475754).

Almost surely, 2^202101021212 is an apocalyptic number.

It is an amenable number.

202101021212 is a deficient number, since it is larger than the sum of its proper divisors (152246396884).

202101021212 is a wasteful number, since it uses less digits than its factorization.

202101021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28837 (or 28835 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202101021212 its reverse (212120101202), we get a palindrome (414221122414).

The spelling of 202101021212 in words is "two hundred two billion, one hundred one million, twenty-one thousand, two hundred twelve".