10200010021221 has 16 divisors (see below), whose sum is σ = 13732209855104. Its totient is φ = 6733909949184.

The previous prime is 10200010021193. The next prime is 10200010021231. The reversal of 10200010021221 is 12212001000201.

It is not a de Polignac number, because 10200010021221 - 2⁵ = 10200010021189 is a prime.

It is a super-3 number, since 3×10200010021221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10200010021197 and 10200010021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200010021231) 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, 41920305 + ... + 42162921.

It is an arithmetic number, because the mean of its divisors is an integer number (858263115944).

Almost surely, 2^{10200010021221} is an apocalyptic number.

It is an amenable number.

10200010021221 is a deficient number, since it is larger than the sum of its proper divisors (3532199833883).

10200010021221 is a wasteful number, since it uses less digits than its factorization.

10200010021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378780.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10200010021221 its reverse (12212001000201), we get a palindrome (22412011021422).

The spelling of 10200010021221 in words is "ten trillion, two hundred billion, ten million, twenty-one thousand, two hundred twenty-one".