1021101198 has 16 divisors (see below), whose sum is σ = 2199295056. Its totient is φ = 314184960.

The previous prime is 1021101163. The next prime is 1021101199. The reversal of 1021101198 is 8911011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021101199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6545443 + ... + 6545598.

It is an arithmetic number, because the mean of its divisors is an integer number (137455941).

Almost surely, 2^1021101198 is an apocalyptic number.

1021101198 is an abundant number, since it is smaller than the sum of its proper divisors (1178193858).

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

1021101198 is a wasteful number, since it uses less digits than its factorization.

1021101198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13091059.

The product of its (nonzero) digits is 144, while the sum is 24.

The square root of 1021101198 is about 31954.6741181944. The cubic root of 1021101198 is about 1006.9848312080.

Adding to 1021101198 its reverse (8911011201), we get a palindrome (9932112399).

The spelling of 1021101198 in words is "one billion, twenty-one million, one hundred one thousand, one hundred ninety-eight".