2102012220072 has 32 divisors (see below), whose sum is σ = 5255569065600. Its totient is φ = 700598937984.

The previous prime is 2102012220023. The next prime is 2102012220073. The reversal of 2102012220072 is 2700222102012.

It is not an unprimeable number, because it can be changed into a prime (2102012220073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4248288 + ... + 4717199.

It is an arithmetic number, because the mean of its divisors is an integer number (164236533300).

Almost surely, 2^{2102012220072} is an apocalyptic number.

It is an amenable number.

2102012220072 is an abundant number, since it is smaller than the sum of its proper divisors (3153556845528).

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

2102012220072 is a wasteful number, since it uses less digits than its factorization.

2102012220072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8975265 (or 8975261 counting only the distinct ones).

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

Adding to 2102012220072 its reverse (2700222102012), we get a palindrome (4802234322084).

The spelling of 2102012220072 in words is "two trillion, one hundred two billion, twelve million, two hundred twenty thousand, seventy-two".