122021040 has 80 divisors (see below), whose sum is σ = 398188800. Its totient is φ = 30825216.

The previous prime is 122020979. The next prime is 122021041. The reversal of 122021040 is 40120221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (122021041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8820 + ... + 17939.

It is an arithmetic number, because the mean of its divisors is an integer number (4977360).

Almost surely, 2^122021040 is an apocalyptic number.

122021040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021040 is an abundant number, since it is smaller than the sum of its proper divisors (276167760).

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

122021040 is a wasteful number, since it uses less digits than its factorization.

122021040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26794 (or 26788 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 122021040 is about 11046.3134121751. The cubic root of 122021040 is about 495.9960761049.

Adding to 122021040 its reverse (40120221), we get a palindrome (162141261).

The spelling of 122021040 in words is "one hundred twenty-two million, twenty-one thousand, forty".