122021031200 has 144 divisors (see below), whose sum is σ = 305240775840. Its totient is φ = 47606200320.

The previous prime is 122021031163. The next prime is 122021031227. The reversal of 122021031200 is 2130120221.

It is a happy number.

It is a super-2 number, since 2×122021031200² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29478731 + ... + 29482869.

It is an arithmetic number, because the mean of its divisors is an integer number (2119727610).

Almost surely, 2^122021031200 is an apocalyptic number.

122021031200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122021031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152620387920).

122021031200 is an abundant number, since it is smaller than the sum of its proper divisors (183219744640).

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

122021031200 is a wasteful number, since it uses less digits than its factorization.

122021031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059 (or 5046 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 122021031200 its reverse (2130120221), we get a palindrome (124151151421).

The spelling of 122021031200 in words is "one hundred twenty-two billion, twenty-one million, thirty-one thousand, two hundred".