222122001221020 has 24 divisors (see below), whose sum is σ = 466458995457504. Its totient is φ = 88848268508736.

The previous prime is 222122001220979. The next prime is 222122001221023. The reversal of 222122001221020 is 20122100221222.

222122001221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122001221023) 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, 29816272 + ... + 36513751.

It is an arithmetic number, because the mean of its divisors is an integer number (19435791477396).

Almost surely, 2^{222122001221020} is an apocalyptic number.

222122001221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122001221020 is an abundant number, since it is smaller than the sum of its proper divisors (244336994236484).

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

222122001221020 is a wasteful number, since it uses less digits than its factorization.

222122001221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66497469 (or 66497467 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222122001221020 its reverse (20122100221222), we get a palindrome (242244101442242).

The spelling of 222122001221020 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one million, two hundred twenty-one thousand, twenty".