121211001022 has 8 divisors (see below), whose sum is σ = 181879487856. Its totient is φ = 60584505072.

The previous prime is 121211000971. The next prime is 121211001031. The reversal of 121211001022 is 220100112121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121211000993 and 121211001011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10490503 + ... + 10502050.

It is an arithmetic number, because the mean of its divisors is an integer number (22734935982).

Almost surely, 2^121211001022 is an apocalyptic number.

121211001022 is a deficient number, since it is larger than the sum of its proper divisors (60668486834).

121211001022 is a wasteful number, since it uses less digits than its factorization.

121211001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20995442.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121211001022 its reverse (220100112121), we get a palindrome (341311113143).

The spelling of 121211001022 in words is "one hundred twenty-one billion, two hundred eleven million, one thousand, twenty-two".