121122011210 has 32 divisors (see below), whose sum is σ = 218515611600. Its totient is φ = 48338684928.

The previous prime is 121122011189. The next prime is 121122011221. The reversal of 121122011210 is 12110221121.

It can be written as a sum of positive squares in 8 ways, for example, as 53563084969 + 67558926241 = 231437^2 + 259921^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12169316 + ... + 12179264.

Almost surely, 2^121122011210 is an apocalyptic number.

121122011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121122011210 is a deficient number, since it is larger than the sum of its proper divisors (97393600390).

121122011210 is a wasteful number, since it uses less digits than its factorization.

121122011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12602.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121122011210 its reverse (12110221121), we get a palindrome (133232232331).

The spelling of 121122011210 in words is "one hundred twenty-one billion, one hundred twenty-two million, eleven thousand, two hundred ten".