121001211121222 has 16 divisors (see below), whose sum is σ = 182019051789120. Its totient is φ = 60328280439232.

The previous prime is 121001211121211. The next prime is 121001211121331. The reversal of 121001211121222 is 222121112100121.

It is a happy number.

It is a super-2 number, since 2×121001211121222² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121001211121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18847918 + ... + 24438625.

It is an arithmetic number, because the mean of its divisors is an integer number (11376190736820).

Almost surely, 2^{121001211121222} is an apocalyptic number.

121001211121222 is a deficient number, since it is larger than the sum of its proper divisors (61017840667898).

121001211121222 is a wasteful number, since it uses less digits than its factorization.

121001211121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43290527.

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

Adding to 121001211121222 its reverse (222121112100121), we get a palindrome (343122323221343).

The spelling of 121001211121222 in words is "one hundred twenty-one trillion, one billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".