121230223010 has 32 divisors (see below), whose sum is σ = 235914586992. Its totient is φ = 44587745280.

The previous prime is 121230222989. The next prime is 121230223031. The reversal of 121230223010 is 10322032121.

It is an interprime number because it is at equal distance from previous prime (121230222989) and next prime (121230223031).

It can be written as a sum of positive squares in 8 ways, for example, as 51324449401 + 69905773609 = 226549^2 + 264397^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121230223010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780871 + ... + 1847690.

Almost surely, 2^121230223010 is an apocalyptic number.

121230223010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121230223010 is a deficient number, since it is larger than the sum of its proper divisors (114684363982).

121230223010 is a wasteful number, since it uses less digits than its factorization.

121230223010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628838.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121230223010 its reverse (10322032121), we get a palindrome (131552255131).

The spelling of 121230223010 in words is "one hundred twenty-one billion, two hundred thirty million, two hundred twenty-three thousand, ten".