20201021001212 has 6 divisors (see below), whose sum is σ = 35351786752128. Its totient is φ = 10100510500604.

The previous prime is 20201021001197. The next prime is 20201021001257. The reversal of 20201021001212 is 21210012010202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525127625148 + ... + 2525127625155.

It is an arithmetic number, because the mean of its divisors is an integer number (5891964458688).

Almost surely, 2^{20201021001212} is an apocalyptic number.

It is an amenable number.

20201021001212 is a deficient number, since it is larger than the sum of its proper divisors (15150765750916).

20201021001212 is a wasteful number, since it uses less digits than its factorization.

20201021001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050255250307 (or 5050255250305 counting only the distinct ones).

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

Adding to 20201021001212 its reverse (21210012010202), we get a palindrome (41411033011414).

The spelling of 20201021001212 in words is "twenty trillion, two hundred one billion, twenty-one million, one thousand, two hundred twelve".