121202001021222 has 256 divisors, whose sum is σ = 310482552176640. Its totient is φ = 35119759641120.

The previous prime is 121202001021169. The next prime is 121202001021287. The reversal of 121202001021222 is 222120100202121.

It is a happy number.

121202001021222 is a `hidden beast` number, since 1 + 212 + 0 + 200 + 10 + 21 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121202001021195 and 121202001021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3832216173 + ... + 3832247799.

It is an arithmetic number, because the mean of its divisors is an integer number (1212822469440).

Almost surely, 2^{121202001021222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121202001021222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155241276088320).

121202001021222 is an abundant number, since it is smaller than the sum of its proper divisors (189280551155418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121202001021222 is a wasteful number, since it uses less digits than its factorization.

121202001021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35147 (or 35129 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121202001021222 its reverse (222120100202121), we get a palindrome (343322101223343).

The spelling of 121202001021222 in words is "one hundred twenty-one trillion, two hundred two billion, one million, twenty-one thousand, two hundred twenty-two".