210220021099 has 8 divisors (see below), whose sum is σ = 229955816448. Its totient is φ = 190588373160.

The previous prime is 210220021087. The next prime is 210220021127. The reversal of 210220021099 is 990120022012.

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

It is a cyclic number.

It is not a de Polignac number, because 210220021099 - 2¹⁵ = 210219988331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210220021009) 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, 26032627 + ... + 26040700.

It is an arithmetic number, because the mean of its divisors is an integer number (28744477056).

Almost surely, 2^210220021099 is an apocalyptic number.

210220021099 is a deficient number, since it is larger than the sum of its proper divisors (19735795349).

210220021099 is a wasteful number, since it uses less digits than its factorization.

210220021099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52073705.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 210220021099 in words is "two hundred ten billion, two hundred twenty million, twenty-one thousand, ninety-nine".