200201100021021 has 16 divisors (see below), whose sum is σ = 291212174737728. Its totient is φ = 121329593884800.

The previous prime is 200201100020969. The next prime is 200201100021031. The reversal of 200201100021021 is 120120001102002.

It is not a de Polignac number, because 200201100021021 - 2¹⁷ = 200201099889949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200201100020988 and 200201100021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200201100021031) 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, 109230576 + ... + 111048281.

It is an arithmetic number, because the mean of its divisors is an integer number (18200760921108).

Almost surely, 2^{200201100021021} is an apocalyptic number.

It is an amenable number.

200201100021021 is a deficient number, since it is larger than the sum of its proper divisors (91011074716707).

200201100021021 is a wasteful number, since it uses less digits than its factorization.

200201100021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220306412.

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

Adding to 200201100021021 its reverse (120120001102002), we get a palindrome (320321101123023).

The spelling of 200201100021021 in words is "two hundred trillion, two hundred one billion, one hundred million, twenty-one thousand, twenty-one".