10002120021222 has 128 divisors (see below), whose sum is σ = 24629018726400. Its totient is φ = 2643937946496.

The previous prime is 10002120021151. The next prime is 10002120021293. The reversal of 10002120021222 is 22212002120001.

10002120021222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10002120021151) and next prime (10002120021293).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 240074229 + ... + 240115887.

It is an arithmetic number, because the mean of its divisors is an integer number (192414208800).

Almost surely, 2^{10002120021222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10002120021222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12314509363200).

10002120021222 is an abundant number, since it is smaller than the sum of its proper divisors (14626898705178).

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

10002120021222 is a wasteful number, since it uses less digits than its factorization.

10002120021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48730.

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

Adding to 10002120021222 its reverse (22212002120001), we get a palindrome (32214122141223).

The spelling of 10002120021222 in words is "ten trillion, two billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".