45021213111 has 16 divisors (see below), whose sum is σ = 68607465984. Its totient is φ = 25725015264.

The previous prime is 45021213077. The next prime is 45021213113. The reversal of 45021213111 is 11131212054.

It is not a de Polignac number, because 45021213111 - 2¹¹ = 45021211063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45021213113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437845 + ... + 530801.

It is an arithmetic number, because the mean of its divisors is an integer number (4287966624).

Almost surely, 2^45021213111 is an apocalyptic number.

45021213111 is a deficient number, since it is larger than the sum of its proper divisors (23586252873).

45021213111 is a wasteful number, since it uses less digits than its factorization.

45021213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116030.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 45021213111 its reverse (11131212054), we get a palindrome (56152425165).

The spelling of 45021213111 in words is "forty-five billion, twenty-one million, two hundred thirteen thousand, one hundred eleven".