121012111222210 has 16 divisors (see below), whose sum is σ = 234577323292536. Its totient is φ = 44681394912768.

The previous prime is 121012111222207. The next prime is 121012111222213. The reversal of 121012111222210 is 12222111210121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121012111222207) and next prime (121012111222213).

It can be written as a sum of positive squares in 4 ways, for example, as 85084039258201 + 35928071964009 = 9224101^2 + 5994003^2 .

It is not an unprimeable number, because it can be changed into a prime (121012111222213) 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, 465431196879 + ... + 465431197138.

Almost surely, 2^{121012111222210} is an apocalyptic number.

121012111222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012111222210 is a deficient number, since it is larger than the sum of its proper divisors (113565212070326).

121012111222210 is a wasteful number, since it uses less digits than its factorization.

121012111222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930862394037.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121012111222210 its reverse (12222111210121), we get a palindrome (133234222432331).

The spelling of 121012111222210 in words is "one hundred twenty-one trillion, twelve billion, one hundred eleven million, two hundred twenty-two thousand, two hundred ten".