10002222101220 has 48 divisors (see below), whose sum is σ = 28763146805568. Its totient is φ = 2595171139200.

The previous prime is 10002222101161. The next prime is 10002222101227. The reversal of 10002222101220 is 2210122220001.

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 10002222101220.

It is not an unprimeable number, because it can be changed into a prime (10002222101227) 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, 2252750506 + ... + 2252754945.

It is an arithmetic number, because the mean of its divisors is an integer number (599232225116).

Almost surely, 2^{10002222101220} is an apocalyptic number.

10002222101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002222101220 is an abundant number, since it is smaller than the sum of its proper divisors (18760924704348).

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

10002222101220 is a wasteful number, since it uses less digits than its factorization.

10002222101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505505500 (or 4505505498 counting only the distinct ones).

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

Adding to 10002222101220 its reverse (2210122220001), we get a palindrome (12212344321221).

It can be divided in two parts, 10002 and 222101220, that added together give a palindrome (222111222).

The spelling of 10002222101220 in words is "ten trillion, two billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty".