122148834490 has 16 divisors (see below), whose sum is σ = 219880513440. Its totient is φ = 48856731280.

The previous prime is 122148834461. The next prime is 122148834491. The reversal of 122148834490 is 94438841221.

It is a self number, because there is not a number n which added to its sum of digits gives 122148834490.

It is not an unprimeable number, because it can be changed into a prime (122148834491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162460 + ... + 520279.

It is an arithmetic number, because the mean of its divisors is an integer number (13742532090).

Almost surely, 2^122148834490 is an apocalyptic number.

122148834490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122148834490 is a deficient number, since it is larger than the sum of its proper divisors (97731678950).

122148834490 is a wasteful number, since it uses less digits than its factorization.

122148834490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700637.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 122148834490 in words is "one hundred twenty-two billion, one hundred forty-eight million, eight hundred thirty-four thousand, four hundred ninety".