1002101120220 has 48 divisors (see below), whose sum is σ = 2881717822368. Its totient is φ = 260004614400.

The previous prime is 1002101120219. The next prime is 1002101120221. The reversal of 1002101120220 is 220211012001.

It is an interprime number because it is at equal distance from previous prime (1002101120219) and next prime (1002101120221).

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

It is a junction number, because it is equal to n+sod(n) for n = 1002101120196 and 1002101120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002101120221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225696231 + ... + 225700670.

It is an arithmetic number, because the mean of its divisors is an integer number (60035787966).

Almost surely, 2^{1002101120220} is an apocalyptic number.

1002101120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002101120220 is an abundant number, since it is smaller than the sum of its proper divisors (1879616702148).

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

1002101120220 is a wasteful number, since it uses less digits than its factorization.

1002101120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451396950 (or 451396948 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002101120220 its reverse (220211012001), we get a palindrome (1222312132221).

The spelling of 1002101120220 in words is "one trillion, two billion, one hundred one million, one hundred twenty thousand, two hundred twenty".