20211611652212 has 96 divisors (see below), whose sum is σ = 37655835807744. Its totient is φ = 9477135360000.

The previous prime is 20211611652191. The next prime is 20211611652217. The reversal of 20211611652212 is 21225611611202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211611652217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343921943 + ... + 343980705.

It is an arithmetic number, because the mean of its divisors is an integer number (392248289664).

Almost surely, 2^{20211611652212} is an apocalyptic number.

It is an amenable number.

20211611652212 is a deficient number, since it is larger than the sum of its proper divisors (17444224155532).

20211611652212 is a wasteful number, since it uses less digits than its factorization.

20211611652212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59349 (or 59347 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 20211611652212 in words is "twenty trillion, two hundred eleven billion, six hundred eleven million, six hundred fifty-two thousand, two hundred twelve".