1210121222098 has 4 divisors (see below), whose sum is σ = 1815181833150. Its totient is φ = 605060611048.

The previous prime is 1210121222053. The next prime is 1210121222099. The reversal of 1210121222098 is 8902221210121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1137138578689 + 72982643409 = 1066367^2 + 270153^2 .

It is not an unprimeable number, because it can be changed into a prime (1210121222099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302530305523 + ... + 302530305526.

Almost surely, 2^{1210121222098} is an apocalyptic number.

1210121222098 is a deficient number, since it is larger than the sum of its proper divisors (605060611052).

1210121222098 is an equidigital number, since it uses as much as digits as its factorization.

1210121222098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605060611051.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 1210121222098 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-two thousand, ninety-eight".