122501000 has 32 divisors (see below), whose sum is σ = 286654680. Its totient is φ = 49000000.

The previous prime is 122500979. The next prime is 122501011. The reversal of 122501000 is 105221.

It can be written as a sum of positive squares in 4 ways, for example, as 82482724 + 40018276 = 9082^2 + 6326^2 .

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, 60251 + ... + 62250.

Almost surely, 2^122501000 is an apocalyptic number.

122501000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122501000 is an abundant number, since it is smaller than the sum of its proper divisors (164153680).

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

122501000 is a wasteful number, since it uses less digits than its factorization.

122501000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122522 (or 122508 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 122501000 is about 11068.0169858923. The cubic root of 122501000 is about 496.6455455987.

Adding to 122501000 its reverse (105221), we get a palindrome (122606221).

The spelling of 122501000 in words is "one hundred twenty-two million, five hundred one thousand".