197211190281 has 12 divisors (see below), whose sum is σ = 305878581072. Its totient is φ = 112692108648.

The previous prime is 197211190261. The next prime is 197211190283. The reversal of 197211190281 is 182091112791.

It is not a de Polignac number, because 197211190281 - 2⁵ = 197211190249 is a prime.

It is a super-2 number, since 2×197211190281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197211190283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670786215 + ... + 670786508.

It is an arithmetic number, because the mean of its divisors is an integer number (25489881756).

Almost surely, 2^197211190281 is an apocalyptic number.

It is an amenable number.

197211190281 is a deficient number, since it is larger than the sum of its proper divisors (108667390791).

197211190281 is a wasteful number, since it uses less digits than its factorization.

197211190281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341572740 (or 1341572733 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 42.

The spelling of 197211190281 in words is "one hundred ninety-seven billion, two hundred eleven million, one hundred ninety thousand, two hundred eighty-one".