121220201201012 has 24 divisors (see below), whose sum is σ = 212284493064000. Its totient is φ = 60567503425856.

The previous prime is 121220201200961. The next prime is 121220201201027. The reversal of 121220201201012 is 210102102022121.

It is a super-2 number, since 2×121220201201012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31614539 + ... + 35240877.

It is an arithmetic number, because the mean of its divisors is an integer number (8845187211000).

Almost surely, 2^{121220201201012} is an apocalyptic number.

It is an amenable number.

121220201201012 is a deficient number, since it is larger than the sum of its proper divisors (91064291862988).

121220201201012 is a wasteful number, since it uses less digits than its factorization.

121220201201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632215 (or 3632213 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121220201201012 its reverse (210102102022121), we get a palindrome (331322303223133).

The spelling of 121220201201012 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred one million, two hundred one thousand, twelve".