220001210120220 has 24 divisors (see below), whose sum is σ = 616003388336784. Its totient is φ = 58666989365376.

The previous prime is 220001210120207. The next prime is 220001210120269. The reversal of 220001210120220 is 22021012100022.

It is a super-2 number, since 2×220001210120220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220001210120220.

It is a congruent number.

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, 1833343417609 + ... + 1833343417728.

It is an arithmetic number, because the mean of its divisors is an integer number (25666807847366).

Almost surely, 2^{220001210120220} is an apocalyptic number.

220001210120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220001210120220 is an abundant number, since it is smaller than the sum of its proper divisors (396002178216564).

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

220001210120220 is a wasteful number, since it uses less digits than its factorization.

220001210120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666686835349 (or 3666686835347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220001210120220 its reverse (22021012100022), we get a palindrome (242022222220242).

The spelling of 220001210120220 in words is "two hundred twenty trillion, one billion, two hundred ten million, one hundred twenty thousand, two hundred twenty".