20213211101144 has 8 divisors (see below), whose sum is σ = 37899770814660. Its totient is φ = 10106605550568.

The previous prime is 20213211101137. The next prime is 20213211101177. The reversal of 20213211101144 is 44110111231202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20213211101144² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263325693814 + ... + 1263325693829.

Almost surely, 2^{20213211101144} is an apocalyptic number.

It is an amenable number.

20213211101144 is a deficient number, since it is larger than the sum of its proper divisors (17686559713516).

20213211101144 is a wasteful number, since it uses less digits than its factorization.

20213211101144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526651387649 (or 2526651387645 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 20213211101144 its reverse (44110111231202), we get a palindrome (64323322332346).

The spelling of 20213211101144 in words is "twenty trillion, two hundred thirteen billion, two hundred eleven million, one hundred one thousand, one hundred forty-four".