138784215152222 has 16 divisors (see below), whose sum is σ = 208266125683392. Its totient is φ = 69362174044800.

The previous prime is 138784215152203. The next prime is 138784215152269. The reversal of 138784215152222 is 222251512487831.

It is a super-2 number, since 2×138784215152222² (a number of 29 digits) contains 22 as substring.

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, 475587323 + ... + 475879049.

It is an arithmetic number, because the mean of its divisors is an integer number (13016632855212).

Almost surely, 2^{138784215152222} is an apocalyptic number.

138784215152222 is a deficient number, since it is larger than the sum of its proper divisors (69481910531170).

138784215152222 is a wasteful number, since it uses less digits than its factorization.

138784215152222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393523.

The product of its digits is 4300800, while the sum is 53.

The spelling of 138784215152222 in words is "one hundred thirty-eight trillion, seven hundred eighty-four billion, two hundred fifteen million, one hundred fifty-two thousand, two hundred twenty-two".