1201222220102 has 4 divisors (see below), whose sum is σ = 1801833330156. Its totient is φ = 600611110050.

The previous prime is 1201222220101. The next prime is 1201222220113. The reversal of 1201222220102 is 2010222221021.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300305555024 + ... + 300305555027.

It is an arithmetic number, because the mean of its divisors is an integer number (450458332539).

Almost surely, 2^{1201222220102} is an apocalyptic number.

1201222220102 is a deficient number, since it is larger than the sum of its proper divisors (600611110054).

1201222220102 is an equidigital number, since it uses as much as digits as its factorization.

1201222220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600611110053.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1201222220102 its reverse (2010222221021), we get a palindrome (3211444441123).

The spelling of 1201222220102 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred two".