140364512221 has 16 divisors (see below), whose sum is σ = 153502553088. Its totient is φ = 127773676800.

The previous prime is 140364512179. The next prime is 140364512227. The reversal of 140364512221 is 122215463041.

It is a cyclic number.

It is not a de Polignac number, because 140364512221 - 2¹⁷ = 140364381149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140364512227) 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, 864951 + ... + 1014331.

It is an arithmetic number, because the mean of its divisors is an integer number (9593909568).

Almost surely, 2^140364512221 is an apocalyptic number.

It is an amenable number.

140364512221 is a deficient number, since it is larger than the sum of its proper divisors (13138040867).

140364512221 is a wasteful number, since it uses less digits than its factorization.

140364512221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151212.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 140364512221 its reverse (122215463041), we get a palindrome (262579975262).

The spelling of 140364512221 in words is "one hundred forty billion, three hundred sixty-four million, five hundred twelve thousand, two hundred twenty-one".