20201112021212 has 24 divisors (see below), whose sum is σ = 36074981181456. Its totient is φ = 9894567316608.

The previous prime is 20201112021197. The next prime is 20201112021221. The reversal of 20201112021212 is 21212021110202.

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, 73960313 + ... + 74232944.

It is an arithmetic number, because the mean of its divisors is an integer number (1503124215894).

Almost surely, 2^{20201112021212} is an apocalyptic number.

It is an amenable number.

20201112021212 is a deficient number, since it is larger than the sum of its proper divisors (15873869160244).

20201112021212 is a wasteful number, since it uses less digits than its factorization.

20201112021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148193957 (or 148193955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20201112021212 its reverse (21212021110202), we get a palindrome (41413133131414).

The spelling of 20201112021212 in words is "twenty trillion, two hundred one billion, one hundred twelve million, twenty-one thousand, two hundred twelve".