121203331220212 has 12 divisors (see below), whose sum is σ = 224582643143460. Its totient is φ = 57036861750656.

The previous prime is 121203331220203. The next prime is 121203331220227. The reversal of 121203331220212 is 212022133302121.

It can be written as a sum of positive squares in 2 ways, for example, as 94513667450596 + 26689663769616 = 9721814^2 + 5166204^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891200964787 + ... + 891200964922.

It is an arithmetic number, because the mean of its divisors is an integer number (18715220261955).

Almost surely, 2^{121203331220212} is an apocalyptic number.

It is an amenable number.

121203331220212 is a deficient number, since it is larger than the sum of its proper divisors (103379311923248).

121203331220212 is a wasteful number, since it uses less digits than its factorization.

121203331220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782401929730 (or 1782401929728 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121203331220212 its reverse (212022133302121), we get a palindrome (333225464522333).

The spelling of 121203331220212 in words is "one hundred twenty-one trillion, two hundred three billion, three hundred thirty-one million, two hundred twenty thousand, two hundred twelve".