202011220221212 has 24 divisors (see below), whose sum is σ = 360316779774336. Its totient is φ = 99064912376768.

The previous prime is 202011220221131. The next prime is 202011220221221. The reversal of 202011220221212 is 212122022110202.

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, 167337068 + ... + 168539955.

It is an arithmetic number, because the mean of its divisors is an integer number (15013199157264).

Almost surely, 2^{202011220221212} is an apocalyptic number.

It is an amenable number.

202011220221212 is a deficient number, since it is larger than the sum of its proper divisors (158305559553124).

202011220221212 is a wasteful number, since it uses less digits than its factorization.

202011220221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335879917 (or 335879915 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202011220221212 its reverse (212122022110202), we get a palindrome (414133242331414).

The spelling of 202011220221212 in words is "two hundred two trillion, eleven billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twelve".