1220201020102 has 4 divisors (see below), whose sum is σ = 1830301530156. Its totient is φ = 610100510050.

The previous prime is 1220201020097. The next prime is 1220201020111. The reversal of 1220201020102 is 2010201020221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1220201020102² (a number of 25 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 as a sum of consecutive naturals, namely, 305050255024 + ... + 305050255027.

It is an arithmetic number, because the mean of its divisors is an integer number (457575382539).

Almost surely, 2^{1220201020102} is an apocalyptic number.

1220201020102 is a deficient number, since it is larger than the sum of its proper divisors (610100510054).

1220201020102 is an equidigital number, since it uses as much as digits as its factorization.

1220201020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610100510053.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1220201020102 its reverse (2010201020221), we get a palindrome (3230402040323).

The spelling of 1220201020102 in words is "one trillion, two hundred twenty billion, two hundred one million, twenty thousand, one hundred two".