202220001021212 has 12 divisors (see below), whose sum is σ = 369271306212816. Its totient is φ = 96713913531840.

The previous prime is 202220001021209. The next prime is 202220001021217. The reversal of 202220001021212 is 212120100022202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220001021217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099021744589 + ... + 1099021744772.

It is an arithmetic number, because the mean of its divisors is an integer number (30772608851068).

Almost surely, 2^{202220001021212} is an apocalyptic number.

It is an amenable number.

202220001021212 is a deficient number, since it is larger than the sum of its proper divisors (167051305191604).

202220001021212 is a wasteful number, since it uses less digits than its factorization.

202220001021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198043489388 (or 2198043489386 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202220001021212 its reverse (212120100022202), we get a palindrome (414340101043414).

The spelling of 202220001021212 in words is "two hundred two trillion, two hundred twenty billion, one million, twenty-one thousand, two hundred twelve".