211233401420 has 24 divisors (see below), whose sum is σ = 448934606064. Its totient is φ = 83475367616.

The previous prime is 211233401419. The next prime is 211233401461. The reversal of 211233401420 is 24104332112.

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, 63622859 + ... + 63626178.

It is an arithmetic number, because the mean of its divisors is an integer number (18705608586).

Almost surely, 2^211233401420 is an apocalyptic number.

211233401420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211233401420 is an abundant number, since it is smaller than the sum of its proper divisors (237701204644).

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

211233401420 is a wasteful number, since it uses less digits than its factorization.

211233401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127249129 (or 127249127 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 211233401420 its reverse (24104332112), we get a palindrome (235337733532).

The spelling of 211233401420 in words is "two hundred eleven billion, two hundred thirty-three million, four hundred one thousand, four hundred twenty".