121222122101012 has 6 divisors (see below), whose sum is σ = 212138713676778. Its totient is φ = 60611061050504.

The previous prime is 121222122100993. The next prime is 121222122101023. The reversal of 121222122101012 is 210101221222121.

It can be written as a sum of positive squares in only one way, i.e., 120621983702416 + 600138398596 = 10982804^2 + 774686^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15152765262623 + ... + 15152765262630.

It is an arithmetic number, because the mean of its divisors is an integer number (35356452279463).

Almost surely, 2^{121222122101012} is an apocalyptic number.

It is an amenable number.

121222122101012 is a deficient number, since it is larger than the sum of its proper divisors (90916591575766).

121222122101012 is a wasteful number, since it uses less digits than its factorization.

121222122101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30305530525257 (or 30305530525255 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121222122101012 its reverse (210101221222121), we get a palindrome (331323343323133).

The spelling of 121222122101012 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred one thousand, twelve".