1221454325002 has 32 divisors (see below), whose sum is σ = 1878560087040. Its totient is φ = 595456619520.

The previous prime is 1221454324969. The next prime is 1221454325017. The reversal of 1221454325002 is 2005234541221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7514898 + ... + 7675714.

It is an arithmetic number, because the mean of its divisors is an integer number (58705002720).

Almost surely, 2^{1221454325002} is an apocalyptic number.

1221454325002 is a deficient number, since it is larger than the sum of its proper divisors (657105762038).

1221454325002 is a wasteful number, since it uses less digits than its factorization.

1221454325002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161406.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1221454325002 its reverse (2005234541221), we get a palindrome (3226688866223).

The spelling of 1221454325002 in words is "one trillion, two hundred twenty-one billion, four hundred fifty-four million, three hundred twenty-five thousand, two".