121211010212222 has 64 divisors (see below), whose sum is σ = 215100147888000. Its totient is φ = 50122536694272.

The previous prime is 121211010212219. The next prime is 121211010212287. The reversal of 121211010212222 is 222212010112121.

It is a junction number, because it is equal to n+sod(n) for n = 121211010212194 and 121211010212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4780166768 + ... + 4780192124.

It is an arithmetic number, because the mean of its divisors is an integer number (3360939810750).

Almost surely, 2^{121211010212222} is an apocalyptic number.

121211010212222 is a deficient number, since it is larger than the sum of its proper divisors (93889137675778).

121211010212222 is a wasteful number, since it uses less digits than its factorization.

121211010212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32853.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121211010212222 its reverse (222212010112121), we get a palindrome (343423020324343).

The spelling of 121211010212222 in words is "one hundred twenty-one trillion, two hundred eleven billion, ten million, two hundred twelve thousand, two hundred twenty-two".