211141200421 has 24 divisors (see below), whose sum is σ = 244238148000. Its totient is φ = 181770188544.

The previous prime is 211141200407. The next prime is 211141200461. The reversal of 211141200421 is 124002141112.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-211141200421 is a prime.

It is a super-3 number, since 3×211141200421³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211141200461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503731 + ... + 822208.

It is an arithmetic number, because the mean of its divisors is an integer number (10176589500).

Almost surely, 2^211141200421 is an apocalyptic number.

It is an amenable number.

211141200421 is a deficient number, since it is larger than the sum of its proper divisors (33096947579).

211141200421 is a wasteful number, since it uses less digits than its factorization.

211141200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326021 (or 1326004 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211141200421 its reverse (124002141112), we get a palindrome (335143341533).

The spelling of 211141200421 in words is "two hundred eleven billion, one hundred forty-one million, two hundred thousand, four hundred twenty-one".