21030402201 has 8 divisors (see below), whose sum is σ = 28945069824.
Its totient is φ = 13568001360.
The previous prime is 21030402193. The next prime is 21030402229. The reversal of 21030402201 is 10220403012.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 21030402201 - 23 = 21030402193 is a prime.
It is not an unprimeable number, because it can be changed into a prime (21030402241) 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, 113066586 + ... + 113066771.
It is an arithmetic number, because the mean of its divisors is an integer number (3618133728).
Almost surely, 221030402201 is an apocalyptic number.
It is an amenable number.
21030402201 is a deficient number, since it is larger than the sum of its proper divisors (7914667623).
21030402201 is a wasteful number, since it uses less digits than its factorization.
21030402201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 226133391.
The product of its (nonzero) digits is 96, while the sum is 15.
Adding to 21030402201 its reverse (10220403012), we get a palindrome (31250805213).
The spelling of 21030402201 in words is "twenty-one billion, thirty million, four hundred two thousand, two hundred one".