1020121001212 has 48 divisors (see below), whose sum is σ = 1810767974400. Its totient is φ = 502810338240.

The previous prime is 1020121001197. The next prime is 1020121001219. The reversal of 1020121001212 is 2121001210201.

It is a super-2 number, since 2×1020121001212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020121001192 and 1020121001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020121001219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134523573 + ... + 134531155.

It is an arithmetic number, because the mean of its divisors is an integer number (37724332800).

Almost surely, 2^{1020121001212} is an apocalyptic number.

It is an amenable number.

1020121001212 is a deficient number, since it is larger than the sum of its proper divisors (790646973188).

1020121001212 is a wasteful number, since it uses less digits than its factorization.

1020121001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226 (or 9224 counting only the distinct ones).

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

Adding to 1020121001212 its reverse (2121001210201), we get a palindrome (3141122211413).

The spelling of 1020121001212 in words is "one trillion, twenty billion, one hundred twenty-one million, one thousand, two hundred twelve".