98061212421 has 12 divisors (see below), whose sum is σ = 149975972172. Its totient is φ = 61528603776.

The previous prime is 98061212339. The next prime is 98061212429. The reversal of 98061212421 is 12421216089.

98061212421 is a `hidden beast` number, since 9 + 8 + 0 + 612 + 12 + 4 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 73924172100 + 24137040321 = 271890^2 + 155361^2 .

It is not a de Polignac number, because 98061212421 - 2⁹ = 98061211909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98061212429) 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, 320461326 + ... + 320461631.

It is an arithmetic number, because the mean of its divisors is an integer number (12497997681).

Almost surely, 2^98061212421 is an apocalyptic number.

It is an amenable number.

98061212421 is a deficient number, since it is larger than the sum of its proper divisors (51914759751).

98061212421 is a wasteful number, since it uses less digits than its factorization.

98061212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640922980 (or 640922977 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 98061212421 in words is "ninety-eight billion, sixty-one million, two hundred twelve thousand, four hundred twenty-one".