1201222001210 has 128 divisors (see below), whose sum is σ = 2848090152960. Its totient is φ = 353391206400.

The previous prime is 1201222001209. The next prime is 1201222001219. The reversal of 1201222001210 is 121002221021.

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

It is not an unprimeable number, because it can be changed into a prime (1201222001219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3813242 + ... + 4116218.

It is an arithmetic number, because the mean of its divisors is an integer number (22250704320).

Almost surely, 2^{1201222001210} is an apocalyptic number.

1201222001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201222001210 is an abundant number, since it is smaller than the sum of its proper divisors (1646868151750).

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

1201222001210 is a wasteful number, since it uses less digits than its factorization.

1201222001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303292.

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

Adding to 1201222001210 its reverse (121002221021), we get a palindrome (1322224222231).

The spelling of 1201222001210 in words is "one trillion, two hundred one billion, two hundred twenty-two million, one thousand, two hundred ten".