211121202101000 has 32 divisors (see below), whose sum is σ = 494023612918680. Its totient is φ = 84448480840000.

The previous prime is 211121202100987. The next prime is 211121202101021. The reversal of 211121202101000 is 101202121112.

It can be written as a sum of positive squares in 4 ways, for example, as 31067045783524 + 180054156317476 = 5573782^2 + 13418426^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105560600051 + ... + 105560602050.

Almost surely, 2^{211121202101000} is an apocalyptic number.

211121202101000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211121202101000 is an abundant number, since it is smaller than the sum of its proper divisors (282902410817680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211121202101000 is a wasteful number, since it uses less digits than its factorization.

211121202101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211121202122 (or 211121202108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211121202101000 its reverse (101202121112), we get a palindrome (211222404222112).

The spelling of 211121202101000 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred two million, one hundred one thousand".