121222012101211 has 8 divisors (see below), whose sum is σ = 139630304153600. Its totient is φ = 103086435486888.

The previous prime is 121222012101209. The next prime is 121222012101251. The reversal of 121222012101211 is 112101210222121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121222012101211 - 2¹ = 121222012101209 is a prime.

It is a super-2 number, since 2×121222012101211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121222012101251) 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, 68178858561 + ... + 68178860338.

It is an arithmetic number, because the mean of its divisors is an integer number (17453788019200).

Almost surely, 2^{121222012101211} is an apocalyptic number.

121222012101211 is a deficient number, since it is larger than the sum of its proper divisors (18408292052389).

121222012101211 is a wasteful number, since it uses less digits than its factorization.

121222012101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136357719033.

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

Adding to 121222012101211 its reverse (112101210222121), we get a palindrome (233323222323332).

The spelling of 121222012101211 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twelve million, one hundred one thousand, two hundred eleven".