212545322 has 16 divisors (see below), whose sum is σ = 368260992. Its totient is φ = 90928320.

The previous prime is 212545301. The next prime is 212545337. The reversal of 212545322 is 223545212.

It is a junction number, because it is equal to n+sod(n) for n = 212545291 and 212545300.

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, 283778 + ... + 284525.

It is an arithmetic number, because the mean of its divisors is an integer number (23016312).

Almost surely, 2^212545322 is an apocalyptic number.

212545322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212545322 is a deficient number, since it is larger than the sum of its proper divisors (155715670).

212545322 is a wasteful number, since it uses less digits than its factorization.

212545322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568333.

The product of its digits is 4800, while the sum is 26.

The square root of 212545322 is about 14578.9341860096. The cubic root of 212545322 is about 596.7840172971.

The spelling of 212545322 in words is "two hundred twelve million, five hundred forty-five thousand, three hundred twenty-two".