1210021098 has 64 divisors (see below), whose sum is σ = 2850567552. Its totient is φ = 337582080.

The previous prime is 1210021093. The next prime is 1210021133. The reversal of 1210021098 is 8901200121.

1210021098 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1210021091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369886 + ... + 373142.

It is an arithmetic number, because the mean of its divisors is an integer number (44540118).

Almost surely, 2^1210021098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210021098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425283776).

1210021098 is an abundant number, since it is smaller than the sum of its proper divisors (1640546454).

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

1210021098 is a wasteful number, since it uses less digits than its factorization.

1210021098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1210021098 is about 34785.3575229578. The cubic root of 1210021098 is about 1065.6084301400.

The spelling of 1210021098 in words is "one billion, two hundred ten million, twenty-one thousand, ninety-eight".