1000121210 has 16 divisors (see below), whose sum is σ = 1963874592. Its totient is φ = 363680400.

The previous prime is 1000121197. The next prime is 1000121257. The reversal of 1000121210 is 121210001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4545896 + ... + 4546115.

It is an arithmetic number, because the mean of its divisors is an integer number (122742162).

Almost surely, 2^1000121210 is an apocalyptic number.

1000121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000121210 is a deficient number, since it is larger than the sum of its proper divisors (963753382).

1000121210 is a wasteful number, since it uses less digits than its factorization.

1000121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9092029.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1000121210 is about 31624.6930419886. The cubic root of 1000121210 is about 1000.0404017010.

Adding to 1000121210 its reverse (121210001), we get a palindrome (1121331211).

The spelling of 1000121210 in words is "one billion, one hundred twenty-one thousand, two hundred ten".