211269936021 has 8 divisors (see below), whose sum is σ = 282309646464. Its totient is φ = 140538424800.

The previous prime is 211269935951. The next prime is 211269936079. The reversal of 211269936021 is 120639962112.

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

It is not a de Polignac number, because 211269936021 - 2²⁵ = 211236381589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211269936091) 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, 77048205 + ... + 77050946.

It is an arithmetic number, because the mean of its divisors is an integer number (35288705808).

Almost surely, 2^211269936021 is an apocalyptic number.

It is an amenable number.

211269936021 is a deficient number, since it is larger than the sum of its proper divisors (71039710443).

211269936021 is a wasteful number, since it uses less digits than its factorization.

211269936021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154099611.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 211269936021 in words is "two hundred eleven billion, two hundred sixty-nine million, nine hundred thirty-six thousand, twenty-one".