211221210001099 has 8 divisors (see below), whose sum is σ = 220405724243712. Its totient is φ = 202036777706280.

The previous prime is 211221210001091. The next prime is 211221210001211. The reversal of 211221210001099 is 990100012122112.

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

It is not a de Polignac number, because 211221210001099 - 2³ = 211221210001091 is a prime.

It is a super-2 number, since 2×211221210001099² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211221210001099.

It is not an unprimeable number, because it can be changed into a prime (211221210001091) 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, 15190719 + ... + 25557784.

It is an arithmetic number, because the mean of its divisors is an integer number (27550715530464).

Almost surely, 2^{211221210001099} is an apocalyptic number.

211221210001099 is a deficient number, since it is larger than the sum of its proper divisors (9184514242613).

211221210001099 is a wasteful number, since it uses less digits than its factorization.

211221210001099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40973897.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 211221210001099 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one thousand, ninety-nine".