212420550 has 24 divisors (see below), whose sum is σ = 526803336. Its totient is φ = 56645440.

The previous prime is 212420543. The next prime is 212420567. The reversal of 212420550 is 55024212.

It is a happy number.

212420550 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 707919 + ... + 708218.

It is an arithmetic number, because the mean of its divisors is an integer number (21950139).

Almost surely, 2^212420550 is an apocalyptic number.

212420550 is an abundant number, since it is smaller than the sum of its proper divisors (314382786).

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

212420550 is a wasteful number, since it uses less digits than its factorization.

212420550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416152 (or 1416147 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 212420550 is about 14574.6543698298. The cubic root of 212420550 is about 596.6672163092.

Adding to 212420550 its reverse (55024212), we get a palindrome (267444762).

The spelling of 212420550 in words is "two hundred twelve million, four hundred twenty thousand, five hundred fifty".