1020020121212 has 24 divisors (see below), whose sum is σ = 1847001184560. Its totient is φ = 492313364480.

The previous prime is 1020020121157. The next prime is 1020020121269. The reversal of 1020020121212 is 2121210200201.

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, 461378 + ... + 1500969.

It is an arithmetic number, because the mean of its divisors is an integer number (76958382690).

Almost surely, 2^{1020020121212} is an apocalyptic number.

It is an amenable number.

1020020121212 is a deficient number, since it is larger than the sum of its proper divisors (826981063348).

1020020121212 is a wasteful number, since it uses less digits than its factorization.

1020020121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966861 (or 1966859 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020020121212 its reverse (2121210200201), we get a palindrome (3141230321413).

It can be divided in two parts, 10200201 and 21212, that multiplied together give a palindrome (216366663612).

The spelling of 1020020121212 in words is "one trillion, twenty billion, twenty million, one hundred twenty-one thousand, two hundred twelve".