1211021212098 has 16 divisors (see below), whose sum is σ = 2429229497760. Its totient is φ = 402475891776.

The previous prime is 1211021212091. The next prime is 1211021212103. The reversal of 1211021212098 is 8902121201121.

It is not an unprimeable number, because it can be changed into a prime (1211021212091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299459208 + ... + 299463251.

It is an arithmetic number, because the mean of its divisors is an integer number (151826843610).

Almost surely, 2^{1211021212098} is an apocalyptic number.

1211021212098 is an abundant number, since it is smaller than the sum of its proper divisors (1218208285662).

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

1211021212098 is a wasteful number, since it uses less digits than its factorization.

1211021212098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598922801.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 1211021212098 in words is "one trillion, two hundred eleven billion, twenty-one million, two hundred twelve thousand, ninety-eight".