212191443354 has 16 divisors (see below), whose sum is σ = 462963149280. Its totient is φ = 64300437360.

The previous prime is 212191443329. The next prime is 212191443383. The reversal of 212191443354 is 453344191212.

It is a super-3 number, since 3×212191443354³ (a number of 35 digits) contains 333 as substring.

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, 1607510869 + ... + 1607511000.

It is an arithmetic number, because the mean of its divisors is an integer number (28935196830).

Almost surely, 2^212191443354 is an apocalyptic number.

212191443354 is an abundant number, since it is smaller than the sum of its proper divisors (250771705926).

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

212191443354 is a wasteful number, since it uses less digits than its factorization.

212191443354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215021885.

The product of its digits is 103680, while the sum is 39.

The spelling of 212191443354 in words is "two hundred twelve billion, one hundred ninety-one million, four hundred forty-three thousand, three hundred fifty-four".