140122123399986 has 256 divisors, whose sum is σ = 381239563493376. Its totient is φ = 33255597551616.

The previous prime is 140122123399939. The next prime is 140122123399987. The reversal of 140122123399986 is 689993321221041.

It is a happy number.

It is a super-2 number, since 2×140122123399986² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140122123399987) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 526536936 + ... + 526802988.

It is an arithmetic number, because the mean of its divisors is an integer number (1489217044896).

Almost surely, 2^{140122123399986} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140122123399986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190619781746688).

140122123399986 is an abundant number, since it is smaller than the sum of its proper divisors (241117440093390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140122123399986 is a wasteful number, since it uses less digits than its factorization.

140122123399986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268585.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 140122123399986 in words is "one hundred forty trillion, one hundred twenty-two billion, one hundred twenty-three million, three hundred ninety-nine thousand, nine hundred eighty-six".