10020011212221 has 8 divisors (see below), whose sum is σ = 13482583894560. Its totient is φ = 6618723002352.

The previous prime is 10020011212219. The next prime is 10020011212259. The reversal of 10020011212221 is 12221211002001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10020011212221 - 2¹ = 10020011212219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10020011212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020011212121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15321117735 + ... + 15321118388.

It is an arithmetic number, because the mean of its divisors is an integer number (1685322986820).

Almost surely, 2^{10020011212221} is an apocalyptic number.

It is an amenable number.

10020011212221 is a deficient number, since it is larger than the sum of its proper divisors (3462572682339).

10020011212221 is a wasteful number, since it uses less digits than its factorization.

10020011212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30642236235.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10020011212221 its reverse (12221211002001), we get a palindrome (22241222214222).

The spelling of 10020011212221 in words is "ten trillion, twenty billion, eleven million, two hundred twelve thousand, two hundred twenty-one".