1212210201020 has 48 divisors (see below), whose sum is σ = 3133097139648. Its totient is φ = 383644546560.

The previous prime is 1212210201019. The next prime is 1212210201029. The reversal of 1212210201020 is 201020122121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1212210200986 and 1212210201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210201029) 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, 333022961 + ... + 333026600.

It is an arithmetic number, because the mean of its divisors is an integer number (65272857076).

Almost surely, 2^{1212210201020} is an apocalyptic number.

1212210201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212210201020 is an abundant number, since it is smaller than the sum of its proper divisors (1920886938628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212210201020 is a wasteful number, since it uses less digits than its factorization.

1212210201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666049590 (or 666049588 counting only the distinct ones).

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

Adding to 1212210201020 its reverse (201020122121), we get a palindrome (1413230323141).

The spelling of 1212210201020 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred one thousand, twenty".