211221210201099 has 16 divisors (see below), whose sum is σ = 321861163284480. Its totient is φ = 120697732569600.

The previous prime is 211221210201077. The next prime is 211221210201137. The reversal of 211221210201099 is 990102012122112.

It is not a de Polignac number, because 211221210201099 - 2⁸ = 211221210200843 is a prime.

It is a super-2 number, since 2×211221210201099² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211221210201019) 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, 26380587 + ... + 33442155.

It is an arithmetic number, because the mean of its divisors is an integer number (20116322705280).

Almost surely, 2^{211221210201099} is an apocalyptic number.

211221210201099 is a deficient number, since it is larger than the sum of its proper divisors (110639953083381).

211221210201099 is a wasteful number, since it uses less digits than its factorization.

211221210201099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8485930.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 211221210201099 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, two hundred one thousand, ninety-nine".