121211101001022 has 48 divisors (see below), whose sum is σ = 265828297078272. Its totient is φ = 36800334253440.

The previous prime is 121211101000993. The next prime is 121211101001051. The reversal of 121211101001022 is 220100101112121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121211101000993) and next prime (121211101001051).

It is a junction number, because it is equal to n+sod(n) for n = 121211101000992 and 121211101001010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1127407468 + ... + 1127514975.

It is an arithmetic number, because the mean of its divisors is an integer number (5538089522464).

Almost surely, 2^{121211101001022} is an apocalyptic number.

121211101001022 is an abundant number, since it is smaller than the sum of its proper divisors (144617196077250).

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

121211101001022 is a wasteful number, since it uses less digits than its factorization.

121211101001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254922513 (or 2254922496 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121211101001022 its reverse (220100101112121), we get a palindrome (341311202113143).

The spelling of 121211101001022 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred one million, one thousand, twenty-two".