72020002101222 has 384 divisors, whose sum is σ = 176632793026560. Its totient is φ = 19166426173440.

The previous prime is 72020002101191. The next prime is 72020002101287. The reversal of 72020002101222 is 22210120002027.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 41557992268 + ... + 41557994000.

It is an arithmetic number, because the mean of its divisors is an integer number (459981231840).

Almost surely, 2^{72020002101222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72020002101222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88316396513280).

72020002101222 is an abundant number, since it is smaller than the sum of its proper divisors (104612790925338).

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

72020002101222 is a wasteful number, since it uses less digits than its factorization.

72020002101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 72020002101222 its reverse (22210120002027), we get a palindrome (94230122103249).

The spelling of 72020002101222 in words is "seventy-two trillion, twenty billion, two million, one hundred one thousand, two hundred twenty-two".